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Finding the Fourth Proportional to 215,658.52, 297,609.95 and 125,068.21

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Solution

The fourth proportional to 215,658.52, 297,609.95 and 125,068.21 is: 172,594.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,658.52 : 297,609.95 = 125,068.21 : x
  2. Step 2: Convert to fraction form
    215,658.52/297,609.95 = 125,068.21/x
  3. Step 3: Cross multiply
    215,658.52x = 297,609.95 × 125,068.21
  4. Step 4: Simplify right side
    215,658.52x = 37,221,543,293.34
  5. Step 5: Solve for x
    x = 37,221,543,293.34/215,658.52
  6. Step 6: Final answer
    x = 172,594.82

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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.