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Finding the Fourth Proportional to 226,390.56, 312,398.69 and 124,414.85

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Solution

The fourth proportional to 226,390.56, 312,398.69 and 124,414.85 is: 171,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,390.56 : 312,398.69 = 124,414.85 : x
  2. Step 2: Convert to fraction form
    226,390.56/312,398.69 = 124,414.85/x
  3. Step 3: Cross multiply
    226,390.56x = 312,398.69 × 124,414.85
  4. Step 4: Simplify right side
    226,390.56x = 38,867,033,972.48
  5. Step 5: Solve for x
    x = 38,867,033,972.48/226,390.56
  6. Step 6: Final answer
    x = 171,681.34

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1.5x scale

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.