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Finding the Fourth Proportional to 102,557.60, 153,836.40 and 88,560.80

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Solution

The fourth proportional to 102,557.60, 153,836.40 and 88,560.80 is: 132,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,557.60 : 153,836.40 = 88,560.80 : x
  2. Step 2: Convert to fraction form
    102,557.60/153,836.40 = 88,560.80/x
  3. Step 3: Cross multiply
    102,557.60x = 153,836.40 × 88,560.80
  4. Step 4: Simplify right side
    102,557.60x = 13,623,874,653.12
  5. Step 5: Solve for x
    x = 13,623,874,653.12/102,557.60
  6. Step 6: Final answer
    x = 132,841.20

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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.