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Finding the Fourth Proportional to 187,472.80, 280,771.80 and 183,714.40

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Solution

The fourth proportional to 187,472.80, 280,771.80 and 183,714.40 is: 275,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,472.80 : 280,771.80 = 183,714.40 : x
  2. Step 2: Convert to fraction form
    187,472.80/280,771.80 = 183,714.40/x
  3. Step 3: Cross multiply
    187,472.80x = 280,771.80 × 183,714.40
  4. Step 4: Simplify right side
    187,472.80x = 51,581,822,773.92
  5. Step 5: Solve for x
    x = 51,581,822,773.92/187,472.80
  6. Step 6: Final answer
    x = 275,142.97

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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.