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Finding the Fourth Proportional to 162,489.60, 243,619.20 and 62,611.20

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Solution

The fourth proportional to 162,489.60, 243,619.20 and 62,611.20 is: 93,872.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,489.60 : 243,619.20 = 62,611.20 : x
  2. Step 2: Convert to fraction form
    162,489.60/243,619.20 = 62,611.20/x
  3. Step 3: Cross multiply
    162,489.60x = 243,619.20 × 62,611.20
  4. Step 4: Simplify right side
    162,489.60x = 15,253,290,455.04
  5. Step 5: Solve for x
    x = 15,253,290,455.04/162,489.60
  6. Step 6: Final answer
    x = 93,872.41

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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.