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Finding the Fourth Proportional to 372,513.28, 514,068.28 and 202,748.64

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Solution

The fourth proportional to 372,513.28, 514,068.28 and 202,748.64 is: 279,793.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,513.28 : 514,068.28 = 202,748.64 : x
  2. Step 2: Convert to fraction form
    372,513.28/514,068.28 = 202,748.64/x
  3. Step 3: Cross multiply
    372,513.28x = 514,068.28 × 202,748.64
  4. Step 4: Simplify right side
    372,513.28x = 104,226,644,637.14
  5. Step 5: Solve for x
    x = 104,226,644,637.14/372,513.28
  6. Step 6: Final answer
    x = 279,793.10

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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.