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Finding the Fourth Proportional to 162,658.92, 243,995.66 and 71,468.30

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Solution

The fourth proportional to 162,658.92, 243,995.66 and 71,468.30 is: 107,205.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,658.92 : 243,995.66 = 71,468.30 : x
  2. Step 2: Convert to fraction form
    162,658.92/243,995.66 = 71,468.30/x
  3. Step 3: Cross multiply
    162,658.92x = 243,995.66 × 71,468.30
  4. Step 4: Simplify right side
    162,658.92x = 17,437,955,027.58
  5. Step 5: Solve for x
    x = 17,437,955,027.58/162,658.92
  6. Step 6: Final answer
    x = 107,205.65

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1.5x scale

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.