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Finding the Fourth Proportional to 177,644.92, 245,149.06 and 105,073.78

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Solution

The fourth proportional to 177,644.92, 245,149.06 and 105,073.78 is: 145,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,644.92 : 245,149.06 = 105,073.78 : x
  2. Step 2: Convert to fraction form
    177,644.92/245,149.06 = 105,073.78/x
  3. Step 3: Cross multiply
    177,644.92x = 245,149.06 × 105,073.78
  4. Step 4: Simplify right side
    177,644.92x = 25,758,738,397.65
  5. Step 5: Solve for x
    x = 25,758,738,397.65/177,644.92
  6. Step 6: Final answer
    x = 145,001.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.