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Finding the Fourth Proportional to 172,613.25, 258,923.12 and 47,957.49

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Solution

The fourth proportional to 172,613.25, 258,923.12 and 47,957.49 is: 71,937.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.25 : 258,923.12 = 47,957.49 : x
  2. Step 2: Convert to fraction form
    172,613.25/258,923.12 = 47,957.49/x
  3. Step 3: Cross multiply
    172,613.25x = 258,923.12 × 47,957.49
  4. Step 4: Simplify right side
    172,613.25x = 12,417,302,698.38
  5. Step 5: Solve for x
    x = 12,417,302,698.38/172,613.25
  6. Step 6: Final answer
    x = 71,937.14

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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.