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Finding the Fourth Proportional to 373,557.76, 515,516.16 and 203,793.28

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Solution

The fourth proportional to 373,557.76, 515,516.16 and 203,793.28 is: 281,238.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,557.76 : 515,516.16 = 203,793.28 : x
  2. Step 2: Convert to fraction form
    373,557.76/515,516.16 = 203,793.28/x
  3. Step 3: Cross multiply
    373,557.76x = 515,516.16 × 203,793.28
  4. Step 4: Simplify right side
    373,557.76x = 105,058,729,139.41
  5. Step 5: Solve for x
    x = 105,058,729,139.41/373,557.76
  6. Step 6: Final answer
    x = 281,238.25

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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.