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Finding the Fourth Proportional to 132,358.80, 198,246.60 and 117,584.40

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Solution

The fourth proportional to 132,358.80, 198,246.60 and 117,584.40 is: 176,117.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,358.80 : 198,246.60 = 117,584.40 : x
  2. Step 2: Convert to fraction form
    132,358.80/198,246.60 = 117,584.40/x
  3. Step 3: Cross multiply
    132,358.80x = 198,246.60 × 117,584.40
  4. Step 4: Simplify right side
    132,358.80x = 23,310,707,513.04
  5. Step 5: Solve for x
    x = 23,310,707,513.04/132,358.80
  6. Step 6: Final answer
    x = 176,117.55

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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.