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Finding the Fourth Proportional to 168,445.71, 232,428.60 and 96,811.90

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Solution

The fourth proportional to 168,445.71, 232,428.60 and 96,811.90 is: 133,585.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,445.71 : 232,428.60 = 96,811.90 : x
  2. Step 2: Convert to fraction form
    168,445.71/232,428.60 = 96,811.90/x
  3. Step 3: Cross multiply
    168,445.71x = 232,428.60 × 96,811.90
  4. Step 4: Simplify right side
    168,445.71x = 22,501,854,380.34
  5. Step 5: Solve for x
    x = 22,501,854,380.34/168,445.71
  6. Step 6: Final answer
    x = 133,585.20

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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.