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Finding the Fourth Proportional to 186,251.78, 279,275.60 and 73,818.11

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Solution

The fourth proportional to 186,251.78, 279,275.60 and 73,818.11 is: 110,686.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,251.78 : 279,275.60 = 73,818.11 : x
  2. Step 2: Convert to fraction form
    186,251.78/279,275.60 = 73,818.11/x
  3. Step 3: Cross multiply
    186,251.78x = 279,275.60 × 73,818.11
  4. Step 4: Simplify right side
    186,251.78x = 20,615,595,749.28
  5. Step 5: Solve for x
    x = 20,615,595,749.28/186,251.78
  6. Step 6: Final answer
    x = 110,686.71

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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.