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Finding the Fourth Proportional to 253,363.20, 379,807.20 and 95,697.60

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Solution

The fourth proportional to 253,363.20, 379,807.20 and 95,697.60 is: 143,456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,363.20 : 379,807.20 = 95,697.60 : x
  2. Step 2: Convert to fraction form
    253,363.20/379,807.20 = 95,697.60/x
  3. Step 3: Cross multiply
    253,363.20x = 379,807.20 × 95,697.60
  4. Step 4: Simplify right side
    253,363.20x = 36,346,637,502.72
  5. Step 5: Solve for x
    x = 36,346,637,502.72/253,363.20
  6. Step 6: Final answer
    x = 143,456.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.