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Finding the Fourth Proportional to 72,645,032,302.80, 108,967,548,454.20 and 72,645,032,302.80

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Solution

The fourth proportional to 72,645,032,302.80, 108,967,548,454.20 and 72,645,032,302.80 is: 108,967,548,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,645,032,302.80 : 108,967,548,454.20 = 72,645,032,302.80 : x
  2. Step 2: Convert to fraction form
    72,645,032,302.80/108,967,548,454.20 = 72,645,032,302.80/x
  3. Step 3: Cross multiply
    72,645,032,302.80x = 108,967,548,454.20 × 72,645,032,302.80
  4. Step 4: Simplify right side
    72,645,032,302.80x = 7,915,951,077,412,282,826,752
  5. Step 5: Solve for x
    x = 7,915,951,077,412,282,826,752/72,645,032,302.80
  6. Step 6: Final answer
    x = 108,967,548,454.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.