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Finding the Fourth Proportional to 186,502.93, 279,798.13 and 74,189.54

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Solution

The fourth proportional to 186,502.93, 279,798.13 and 74,189.54 is: 111,301.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,502.93 : 279,798.13 = 74,189.54 : x
  2. Step 2: Convert to fraction form
    186,502.93/279,798.13 = 74,189.54/x
  3. Step 3: Cross multiply
    186,502.93x = 279,798.13 × 74,189.54
  4. Step 4: Simplify right side
    186,502.93x = 20,758,094,557.56
  5. Step 5: Solve for x
    x = 20,758,094,557.56/186,502.93
  6. Step 6: Final answer
    x = 111,301.71

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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.