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Finding the Fourth Proportional to 181,656.74, 272,308.33 and 86,862.44

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Solution

The fourth proportional to 181,656.74, 272,308.33 and 86,862.44 is: 130,209.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,656.74 : 272,308.33 = 86,862.44 : x
  2. Step 2: Convert to fraction form
    181,656.74/272,308.33 = 86,862.44/x
  3. Step 3: Cross multiply
    181,656.74x = 272,308.33 × 86,862.44
  4. Step 4: Simplify right side
    181,656.74x = 23,653,366,656.90
  5. Step 5: Solve for x
    x = 23,653,366,656.90/181,656.74
  6. Step 6: Final answer
    x = 130,209.13

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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.