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Finding the Fourth Proportional to 102,534.40, 153,866.40 and 60,414.40

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Solution

The fourth proportional to 102,534.40, 153,866.40 and 60,414.40 is: 90,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,534.40 : 153,866.40 = 60,414.40 : x
  2. Step 2: Convert to fraction form
    102,534.40/153,866.40 = 60,414.40/x
  3. Step 3: Cross multiply
    102,534.40x = 153,866.40 × 60,414.40
  4. Step 4: Simplify right side
    102,534.40x = 9,295,746,236.16
  5. Step 5: Solve for x
    x = 9,295,746,236.16/102,534.40
  6. Step 6: Final answer
    x = 90,659.78

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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.