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Finding the Fourth Proportional to 71,561,163.60, 98,751,711.60 and 43,730,410.32

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Solution

The fourth proportional to 71,561,163.60, 98,751,711.60 and 43,730,410.32 is: 60,346,319.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,561,163.60 : 98,751,711.60 = 43,730,410.32 : x
  2. Step 2: Convert to fraction form
    71,561,163.60/98,751,711.60 = 43,730,410.32/x
  3. Step 3: Cross multiply
    71,561,163.60x = 98,751,711.60 × 43,730,410.32
  4. Step 4: Simplify right side
    71,561,163.60x = 4,318,452,868,070,303.50
  5. Step 5: Solve for x
    x = 4,318,452,868,070,303.50/71,561,163.60
  6. Step 6: Final answer
    x = 60,346,319.86

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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.