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Finding the Fourth Proportional to 63,358.22, 87,354.86 and 40,657.16

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Solution

The fourth proportional to 63,358.22, 87,354.86 and 40,657.16 is: 56,055.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,358.22 : 87,354.86 = 40,657.16 : x
  2. Step 2: Convert to fraction form
    63,358.22/87,354.86 = 40,657.16/x
  3. Step 3: Cross multiply
    63,358.22x = 87,354.86 × 40,657.16
  4. Step 4: Simplify right side
    63,358.22x = 3,551,600,519.80
  5. Step 5: Solve for x
    x = 3,551,600,519.80/63,358.22
  6. Step 6: Final answer
    x = 56,055.88

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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.