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Finding the Fourth Proportional to 172,463.16, 258,861.59 and 124,481.24

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Solution

The fourth proportional to 172,463.16, 258,861.59 and 124,481.24 is: 186,842.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,463.16 : 258,861.59 = 124,481.24 : x
  2. Step 2: Convert to fraction form
    172,463.16/258,861.59 = 124,481.24/x
  3. Step 3: Cross multiply
    172,463.16x = 258,861.59 × 124,481.24
  4. Step 4: Simplify right side
    172,463.16x = 32,223,411,232.39
  5. Step 5: Solve for x
    x = 32,223,411,232.39/172,463.16
  6. Step 6: Final answer
    x = 186,842.28

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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.