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Finding the Fourth Proportional to 410,069.48, 615,194.50 and 125,799.16

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Solution

The fourth proportional to 410,069.48, 615,194.50 and 125,799.16 is: 188,726.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,069.48 : 615,194.50 = 125,799.16 : x
  2. Step 2: Convert to fraction form
    410,069.48/615,194.50 = 125,799.16/x
  3. Step 3: Cross multiply
    410,069.48x = 615,194.50 × 125,799.16
  4. Step 4: Simplify right side
    410,069.48x = 77,390,951,336.62
  5. Step 5: Solve for x
    x = 77,390,951,336.62/410,069.48
  6. Step 6: Final answer
    x = 188,726.44

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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.