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Finding the Fourth Proportional to 186,023.25, 279,034.88 and 45,781.88

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Solution

The fourth proportional to 186,023.25, 279,034.88 and 45,781.88 is: 68,672.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,023.25 : 279,034.88 = 45,781.88 : x
  2. Step 2: Convert to fraction form
    186,023.25/279,034.88 = 45,781.88/x
  3. Step 3: Cross multiply
    186,023.25x = 279,034.88 × 45,781.88
  4. Step 4: Simplify right side
    186,023.25x = 12,774,739,767.89
  5. Step 5: Solve for x
    x = 12,774,739,767.89/186,023.25
  6. Step 6: Final answer
    x = 68,672.81

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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.