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Finding the Fourth Proportional to 265,789.92, 398,791.04 and 108,030.72

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Solution

The fourth proportional to 265,789.92, 398,791.04 and 108,030.72 is: 162,089.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,789.92 : 398,791.04 = 108,030.72 : x
  2. Step 2: Convert to fraction form
    265,789.92/398,791.04 = 108,030.72/x
  3. Step 3: Cross multiply
    265,789.92x = 398,791.04 × 108,030.72
  4. Step 4: Simplify right side
    265,789.92x = 43,081,683,180.75
  5. Step 5: Solve for x
    x = 43,081,683,180.75/265,789.92
  6. Step 6: Final answer
    x = 162,089.23

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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.