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Finding the Fourth Proportional to 215,573.92, 297,495.12 and 124,936.56

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Solution

The fourth proportional to 215,573.92, 297,495.12 and 124,936.56 is: 172,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,573.92 : 297,495.12 = 124,936.56 : x
  2. Step 2: Convert to fraction form
    215,573.92/297,495.12 = 124,936.56/x
  3. Step 3: Cross multiply
    215,573.92x = 297,495.12 × 124,936.56
  4. Step 4: Simplify right side
    215,573.92x = 37,168,016,909.59
  5. Step 5: Solve for x
    x = 37,168,016,909.59/215,573.92
  6. Step 6: Final answer
    x = 172,414.26

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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.