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Finding the Fourth Proportional to 95,455.60, 142,891.80 and 74,460.40

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Solution

The fourth proportional to 95,455.60, 142,891.80 and 74,460.40 is: 111,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,455.60 : 142,891.80 = 74,460.40 : x
  2. Step 2: Convert to fraction form
    95,455.60/142,891.80 = 74,460.40/x
  3. Step 3: Cross multiply
    95,455.60x = 142,891.80 × 74,460.40
  4. Step 4: Simplify right side
    95,455.60x = 10,639,780,584.72
  5. Step 5: Solve for x
    x = 10,639,780,584.72/95,455.60
  6. Step 6: Final answer
    x = 111,463.14

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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.