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Finding the Fourth Proportional to 372,061.15, 513,440.78 and 202,295.27

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Solution

The fourth proportional to 372,061.15, 513,440.78 and 202,295.27 is: 279,165.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,061.15 : 513,440.78 = 202,295.27 : x
  2. Step 2: Convert to fraction form
    372,061.15/513,440.78 = 202,295.27/x
  3. Step 3: Cross multiply
    372,061.15x = 513,440.78 × 202,295.27
  4. Step 4: Simplify right side
    372,061.15x = 103,866,641,491.24
  5. Step 5: Solve for x
    x = 103,866,641,491.24/372,061.15
  6. Step 6: Final answer
    x = 279,165.51

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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.