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Finding the Fourth Proportional to 78,851.52, 118,259.40 and 22,691.52

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Solution

The fourth proportional to 78,851.52, 118,259.40 and 22,691.52 is: 34,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,851.52 : 118,259.40 = 22,691.52 : x
  2. Step 2: Convert to fraction form
    78,851.52/118,259.40 = 22,691.52/x
  3. Step 3: Cross multiply
    78,851.52x = 118,259.40 × 22,691.52
  4. Step 4: Simplify right side
    78,851.52x = 2,683,485,540.29
  5. Step 5: Solve for x
    x = 2,683,485,540.29/78,851.52
  6. Step 6: Final answer
    x = 34,032.13

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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.