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Finding the Fourth Proportional to 109,333.60, 164,000.40 and 62,591.20

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Solution

The fourth proportional to 109,333.60, 164,000.40 and 62,591.20 is: 93,886.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,333.60 : 164,000.40 = 62,591.20 : x
  2. Step 2: Convert to fraction form
    109,333.60/164,000.40 = 62,591.20/x
  3. Step 3: Cross multiply
    109,333.60x = 164,000.40 × 62,591.20
  4. Step 4: Simplify right side
    109,333.60x = 10,264,981,836.48
  5. Step 5: Solve for x
    x = 10,264,981,836.48/109,333.60
  6. Step 6: Final answer
    x = 93,886.80

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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.