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Finding the Fourth Proportional to 248,353.17, 372,270.42 and 115,123.56

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Solution

The fourth proportional to 248,353.17, 372,270.42 and 115,123.56 is: 172,565.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,353.17 : 372,270.42 = 115,123.56 : x
  2. Step 2: Convert to fraction form
    248,353.17/372,270.42 = 115,123.56/x
  3. Step 3: Cross multiply
    248,353.17x = 372,270.42 × 115,123.56
  4. Step 4: Simplify right side
    248,353.17x = 42,857,096,033.10
  5. Step 5: Solve for x
    x = 42,857,096,033.10/248,353.17
  6. Step 6: Final answer
    x = 172,565.13

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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.