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Finding the Fourth Proportional to 159,129.76, 238,723.44 and 48,318.88

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Solution

The fourth proportional to 159,129.76, 238,723.44 and 48,318.88 is: 72,487.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,129.76 : 238,723.44 = 48,318.88 : x
  2. Step 2: Convert to fraction form
    159,129.76/238,723.44 = 48,318.88/x
  3. Step 3: Cross multiply
    159,129.76x = 238,723.44 × 48,318.88
  4. Step 4: Simplify right side
    159,129.76x = 11,534,849,250.55
  5. Step 5: Solve for x
    x = 11,534,849,250.55/159,129.76
  6. Step 6: Final answer
    x = 72,487.06

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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.