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Finding the Fourth Proportional to 173,658.32, 260,479.58 and 72,414.59

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Solution

The fourth proportional to 173,658.32, 260,479.58 and 72,414.59 is: 108,618.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,658.32 : 260,479.58 = 72,414.59 : x
  2. Step 2: Convert to fraction form
    173,658.32/260,479.58 = 72,414.59/x
  3. Step 3: Cross multiply
    173,658.32x = 260,479.58 × 72,414.59
  4. Step 4: Simplify right side
    173,658.32x = 18,862,520,324.60
  5. Step 5: Solve for x
    x = 18,862,520,324.60/173,658.32
  6. Step 6: Final answer
    x = 108,618.58

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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.