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Finding the Fourth Proportional to 70,766,540.32, 97,687,957.68 and 47,575,118.08

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Solution

The fourth proportional to 70,766,540.32, 97,687,957.68 and 47,575,118.08 is: 65,673,920.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,766,540.32 : 97,687,957.68 = 47,575,118.08 : x
  2. Step 2: Convert to fraction form
    70,766,540.32/97,687,957.68 = 47,575,118.08/x
  3. Step 3: Cross multiply
    70,766,540.32x = 97,687,957.68 × 47,575,118.08
  4. Step 4: Simplify right side
    70,766,540.32x = 4,647,516,121,620,043
  5. Step 5: Solve for x
    x = 4,647,516,121,620,043/70,766,540.32
  6. Step 6: Final answer
    x = 65,673,920.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.