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Finding the Fourth Proportional to 372,765.80, 514,425 and 202,999.96

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Solution

The fourth proportional to 372,765.80, 514,425 and 202,999.96 is: 280,144.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,765.80 : 514,425 = 202,999.96 : x
  2. Step 2: Convert to fraction form
    372,765.80/514,425 = 202,999.96/x
  3. Step 3: Cross multiply
    372,765.80x = 514,425 × 202,999.96
  4. Step 4: Simplify right side
    372,765.80x = 104,428,254,423
  5. Step 5: Solve for x
    x = 104,428,254,423/372,765.80
  6. Step 6: Final answer
    x = 280,144.41

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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.