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Finding the Fourth Proportional to 186,859.88, 280,306.02 and 53,750.96

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Solution

The fourth proportional to 186,859.88, 280,306.02 and 53,750.96 is: 80,631.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,859.88 : 280,306.02 = 53,750.96 : x
  2. Step 2: Convert to fraction form
    186,859.88/280,306.02 = 53,750.96/x
  3. Step 3: Cross multiply
    186,859.88x = 280,306.02 × 53,750.96
  4. Step 4: Simplify right side
    186,859.88x = 15,066,717,668.78
  5. Step 5: Solve for x
    x = 15,066,717,668.78/186,859.88
  6. Step 6: Final answer
    x = 80,631.10

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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.