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Finding the Fourth Proportional to 67,009,780.80, 100,514,671.20 and 67,009,780.80

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Solution

The fourth proportional to 67,009,780.80, 100,514,671.20 and 67,009,780.80 is: 100,514,671.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,009,780.80 : 100,514,671.20 = 67,009,780.80 : x
  2. Step 2: Convert to fraction form
    67,009,780.80/100,514,671.20 = 67,009,780.80/x
  3. Step 3: Cross multiply
    67,009,780.80x = 100,514,671.20 × 67,009,780.80
  4. Step 4: Simplify right side
    67,009,780.80x = 6,735,466,084,296,073
  5. Step 5: Solve for x
    x = 6,735,466,084,296,073/67,009,780.80
  6. Step 6: Final answer
    x = 100,514,671.20

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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.