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Finding the Fourth Proportional to 372,585.25, 514,167.71 and 202,820.65

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Solution

The fourth proportional to 372,585.25, 514,167.71 and 202,820.65 is: 279,892.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,585.25 : 514,167.71 = 202,820.65 : x
  2. Step 2: Convert to fraction form
    372,585.25/514,167.71 = 202,820.65/x
  3. Step 3: Cross multiply
    372,585.25x = 514,167.71 × 202,820.65
  4. Step 4: Simplify right side
    372,585.25x = 104,283,829,151.21
  5. Step 5: Solve for x
    x = 104,283,829,151.21/372,585.25
  6. Step 6: Final answer
    x = 279,892.53

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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.