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Finding the Fourth Proportional to 226,358.68, 312,374.92 and 124,390.72

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Solution

The fourth proportional to 226,358.68, 312,374.92 and 124,390.72 is: 171,659.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,358.68 : 312,374.92 = 124,390.72 : x
  2. Step 2: Convert to fraction form
    226,358.68/312,374.92 = 124,390.72/x
  3. Step 3: Cross multiply
    226,358.68x = 312,374.92 × 124,390.72
  4. Step 4: Simplify right side
    226,358.68x = 38,856,541,208.74
  5. Step 5: Solve for x
    x = 38,856,541,208.74/226,358.68
  6. Step 6: Final answer
    x = 171,659.16

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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.