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Finding the Fourth Proportional to 73,209.70, 109,944.15 and 56,610.10

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Solution

The fourth proportional to 73,209.70, 109,944.15 and 56,610.10 is: 85,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,209.70 : 109,944.15 = 56,610.10 : x
  2. Step 2: Convert to fraction form
    73,209.70/109,944.15 = 56,610.10/x
  3. Step 3: Cross multiply
    73,209.70x = 109,944.15 × 56,610.10
  4. Step 4: Simplify right side
    73,209.70x = 6,223,949,325.92
  5. Step 5: Solve for x
    x = 6,223,949,325.92/73,209.70
  6. Step 6: Final answer
    x = 85,015.36

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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.