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Finding the Fourth Proportional to 372,118.92, 513,527.76 and 202,356.72

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Solution

The fourth proportional to 372,118.92, 513,527.76 and 202,356.72 is: 279,254.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,118.92 : 513,527.76 = 202,356.72 : x
  2. Step 2: Convert to fraction form
    372,118.92/513,527.76 = 202,356.72/x
  3. Step 3: Cross multiply
    372,118.92x = 513,527.76 × 202,356.72
  4. Step 4: Simplify right side
    372,118.92x = 103,915,793,142.55
  5. Step 5: Solve for x
    x = 103,915,793,142.55/372,118.92
  6. Step 6: Final answer
    x = 279,254.26

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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.