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Finding the Fourth Proportional to 372,892.38, 514,588.86 and 203,126.51

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Solution

The fourth proportional to 372,892.38, 514,588.86 and 203,126.51 is: 280,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,892.38 : 514,588.86 = 203,126.51 : x
  2. Step 2: Convert to fraction form
    372,892.38/514,588.86 = 203,126.51/x
  3. Step 3: Cross multiply
    372,892.38x = 514,588.86 × 203,126.51
  4. Step 4: Simplify right side
    372,892.38x = 104,526,638,201.05
  5. Step 5: Solve for x
    x = 104,526,638,201.05/372,892.38
  6. Step 6: Final answer
    x = 280,313.15

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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.