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Finding the Fourth Proportional to 372,924.72, 514,641.72 and 203,158.80

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Solution

The fourth proportional to 372,924.72, 514,641.72 and 203,158.80 is: 280,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,924.72 : 514,641.72 = 203,158.80 : x
  2. Step 2: Convert to fraction form
    372,924.72/514,641.72 = 203,158.80/x
  3. Step 3: Cross multiply
    372,924.72x = 514,641.72 × 203,158.80
  4. Step 4: Simplify right side
    372,924.72x = 104,553,994,265.14
  5. Step 5: Solve for x
    x = 104,553,994,265.14/372,924.72
  6. Step 6: Final answer
    x = 280,362.20

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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.