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Finding the Fourth Proportional to 186,004.03, 278,833.92 and 67,643.59

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Solution

The fourth proportional to 186,004.03, 278,833.92 and 67,643.59 is: 101,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,004.03 : 278,833.92 = 67,643.59 : x
  2. Step 2: Convert to fraction form
    186,004.03/278,833.92 = 67,643.59/x
  3. Step 3: Cross multiply
    186,004.03x = 278,833.92 × 67,643.59
  4. Step 4: Simplify right side
    186,004.03x = 18,861,327,024.35
  5. Step 5: Solve for x
    x = 18,861,327,024.35/186,004.03
  6. Step 6: Final answer
    x = 101,402.79

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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.