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Finding the Fourth Proportional to 372,007.76, 513,376.56 and 202,242.56

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Solution

The fourth proportional to 372,007.76, 513,376.56 and 202,242.56 is: 279,097.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,007.76 : 513,376.56 = 202,242.56 : x
  2. Step 2: Convert to fraction form
    372,007.76/513,376.56 = 202,242.56/x
  3. Step 3: Cross multiply
    372,007.76x = 513,376.56 × 202,242.56
  4. Step 4: Simplify right side
    372,007.76x = 103,826,589,738.39
  5. Step 5: Solve for x
    x = 103,826,589,738.39/372,007.76
  6. Step 6: Final answer
    x = 279,097.91

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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.