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Finding the Fourth Proportional to 185,861.70, 278,803.17 and 52,731.45

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Solution

The fourth proportional to 185,861.70, 278,803.17 and 52,731.45 is: 79,100.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,861.70 : 278,803.17 = 52,731.45 : x
  2. Step 2: Convert to fraction form
    185,861.70/278,803.17 = 52,731.45/x
  3. Step 3: Cross multiply
    185,861.70x = 278,803.17 × 52,731.45
  4. Step 4: Simplify right side
    185,861.70x = 14,701,695,418.70
  5. Step 5: Solve for x
    x = 14,701,695,418.70/185,861.70
  6. Step 6: Final answer
    x = 79,100.19

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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.