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Finding the Fourth Proportional to 373,158.48, 514,959.12 and 203,392.56

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Solution

The fourth proportional to 373,158.48, 514,959.12 and 203,392.56 is: 280,681.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,158.48 : 514,959.12 = 203,392.56 : x
  2. Step 2: Convert to fraction form
    373,158.48/514,959.12 = 203,392.56/x
  3. Step 3: Cross multiply
    373,158.48x = 514,959.12 × 203,392.56
  4. Step 4: Simplify right side
    373,158.48x = 104,738,853,712.15
  5. Step 5: Solve for x
    x = 104,738,853,712.15/373,158.48
  6. Step 6: Final answer
    x = 280,681.96

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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.