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Finding the Fourth Proportional to 230,663.76, 345,694.20 and 118,248.72

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Solution

The fourth proportional to 230,663.76, 345,694.20 and 118,248.72 is: 177,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,663.76 : 345,694.20 = 118,248.72 : x
  2. Step 2: Convert to fraction form
    230,663.76/345,694.20 = 118,248.72/x
  3. Step 3: Cross multiply
    230,663.76x = 345,694.20 × 118,248.72
  4. Step 4: Simplify right side
    230,663.76x = 40,877,896,661.42
  5. Step 5: Solve for x
    x = 40,877,896,661.42/230,663.76
  6. Step 6: Final answer
    x = 177,218.55

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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.