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Finding the Fourth Proportional to 136,911.92, 205,206.28 and 61,944.24

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Solution

The fourth proportional to 136,911.92, 205,206.28 and 61,944.24 is: 92,843.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,911.92 : 205,206.28 = 61,944.24 : x
  2. Step 2: Convert to fraction form
    136,911.92/205,206.28 = 61,944.24/x
  3. Step 3: Cross multiply
    136,911.92x = 205,206.28 × 61,944.24
  4. Step 4: Simplify right side
    136,911.92x = 12,711,347,057.83
  5. Step 5: Solve for x
    x = 12,711,347,057.83/136,911.92
  6. Step 6: Final answer
    x = 92,843.25

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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.