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Finding the Fourth Proportional to 71,632,546.80, 107,220,205.80 and 56,516,002.80

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Solution

The fourth proportional to 71,632,546.80, 107,220,205.80 and 56,516,002.80 is: 84,593,634.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,632,546.80 : 107,220,205.80 = 56,516,002.80 : x
  2. Step 2: Convert to fraction form
    71,632,546.80/107,220,205.80 = 56,516,002.80/x
  3. Step 3: Cross multiply
    71,632,546.80x = 107,220,205.80 × 56,516,002.80
  4. Step 4: Simplify right side
    71,632,546.80x = 6,059,657,451,209,376
  5. Step 5: Solve for x
    x = 6,059,657,451,209,376/71,632,546.80
  6. Step 6: Final answer
    x = 84,593,634.07

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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.