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Finding the Fourth Proportional to 101,999.60, 152,956.20 and 49,425.20

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Solution

The fourth proportional to 101,999.60, 152,956.20 and 49,425.20 is: 74,116.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,999.60 : 152,956.20 = 49,425.20 : x
  2. Step 2: Convert to fraction form
    101,999.60/152,956.20 = 49,425.20/x
  3. Step 3: Cross multiply
    101,999.60x = 152,956.20 × 49,425.20
  4. Step 4: Simplify right side
    101,999.60x = 7,559,890,776.24
  5. Step 5: Solve for x
    x = 7,559,890,776.24/101,999.60
  6. Step 6: Final answer
    x = 74,116.87

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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.