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Finding the Fourth Proportional to 73,985.92, 111,219.46 and 59,354.90

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Solution

The fourth proportional to 73,985.92, 111,219.46 and 59,354.90 is: 89,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,985.92 : 111,219.46 = 59,354.90 : x
  2. Step 2: Convert to fraction form
    73,985.92/111,219.46 = 59,354.90/x
  3. Step 3: Cross multiply
    73,985.92x = 111,219.46 × 59,354.90
  4. Step 4: Simplify right side
    73,985.92x = 6,601,419,926.35
  5. Step 5: Solve for x
    x = 6,601,419,926.35/73,985.92
  6. Step 6: Final answer
    x = 89,225.35

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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.