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Finding the Fourth Proportional to 96,562.60, 144,843.90 and 87,231.40

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Solution

The fourth proportional to 96,562.60, 144,843.90 and 87,231.40 is: 130,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,562.60 : 144,843.90 = 87,231.40 : x
  2. Step 2: Convert to fraction form
    96,562.60/144,843.90 = 87,231.40/x
  3. Step 3: Cross multiply
    96,562.60x = 144,843.90 × 87,231.40
  4. Step 4: Simplify right side
    96,562.60x = 12,634,936,178.46
  5. Step 5: Solve for x
    x = 12,634,936,178.46/96,562.60
  6. Step 6: Final answer
    x = 130,847.10

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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.