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Finding the Fourth Proportional to 102,799.60, 141,785.17 and 88,483.80

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Solution

The fourth proportional to 102,799.60, 141,785.17 and 88,483.80 is: 122,040.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,799.60 : 141,785.17 = 88,483.80 : x
  2. Step 2: Convert to fraction form
    102,799.60/141,785.17 = 88,483.80/x
  3. Step 3: Cross multiply
    102,799.60x = 141,785.17 × 88,483.80
  4. Step 4: Simplify right side
    102,799.60x = 12,545,690,625.25
  5. Step 5: Solve for x
    x = 12,545,690,625.25/102,799.60
  6. Step 6: Final answer
    x = 122,040.27

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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.