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Finding the Fourth Proportional to 220,141.76, 303,789.68 and 124,657.52

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Solution

The fourth proportional to 220,141.76, 303,789.68 and 124,657.52 is: 172,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,141.76 : 303,789.68 = 124,657.52 : x
  2. Step 2: Convert to fraction form
    220,141.76/303,789.68 = 124,657.52/x
  3. Step 3: Cross multiply
    220,141.76x = 303,789.68 × 124,657.52
  4. Step 4: Simplify right side
    220,141.76x = 37,869,668,110.39
  5. Step 5: Solve for x
    x = 37,869,668,110.39/220,141.76
  6. Step 6: Final answer
    x = 172,024.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.