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Finding the Fourth Proportional to 172,613.13, 258,922.93 and 47,957.37

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Solution

The fourth proportional to 172,613.13, 258,922.93 and 47,957.37 is: 71,936.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,613.13 : 258,922.93 = 47,957.37 : x
  2. Step 2: Convert to fraction form
    172,613.13/258,922.93 = 47,957.37/x
  3. Step 3: Cross multiply
    172,613.13x = 258,922.93 × 47,957.37
  4. Step 4: Simplify right side
    172,613.13x = 12,417,262,755.49
  5. Step 5: Solve for x
    x = 12,417,262,755.49/172,613.13
  6. Step 6: Final answer
    x = 71,936.95

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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.