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Finding the Fourth Proportional to 172,613.92, 258,934.92 and 47,954.92

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Solution

The fourth proportional to 172,613.92, 258,934.92 and 47,954.92 is: 71,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.92 : 258,934.92 = 47,954.92 : x
  2. Step 2: Convert to fraction form
    172,613.92/258,934.92 = 47,954.92/x
  3. Step 3: Cross multiply
    172,613.92x = 258,934.92 × 47,954.92
  4. Step 4: Simplify right side
    172,613.92x = 12,417,203,373.81
  5. Step 5: Solve for x
    x = 12,417,203,373.81/172,613.92
  6. Step 6: Final answer
    x = 71,936.28

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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.