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Finding the Fourth Proportional to 372,759.80, 514,416.72 and 202,993.96

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Solution

The fourth proportional to 372,759.80, 514,416.72 and 202,993.96 is: 280,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,759.80 : 514,416.72 = 202,993.96 : x
  2. Step 2: Convert to fraction form
    372,759.80/514,416.72 = 202,993.96/x
  3. Step 3: Cross multiply
    372,759.80x = 514,416.72 × 202,993.96
  4. Step 4: Simplify right side
    372,759.80x = 104,423,487,083.01
  5. Step 5: Solve for x
    x = 104,423,487,083.01/372,759.80
  6. Step 6: Final answer
    x = 280,136.13

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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.