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Finding the Fourth Proportional to 181,615.68, 272,423.04 and 86,557.71

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Solution

The fourth proportional to 181,615.68, 272,423.04 and 86,557.71 is: 129,836.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,615.68 : 272,423.04 = 86,557.71 : x
  2. Step 2: Convert to fraction form
    181,615.68/272,423.04 = 86,557.71/x
  3. Step 3: Cross multiply
    181,615.68x = 272,423.04 × 86,557.71
  4. Step 4: Simplify right side
    181,615.68x = 23,580,314,493.64
  5. Step 5: Solve for x
    x = 23,580,314,493.64/181,615.68
  6. Step 6: Final answer
    x = 129,836.34

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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.