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Finding the Fourth Proportional to 165,211.32, 247,918.74 and 65,354.52

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Solution

The fourth proportional to 165,211.32, 247,918.74 and 65,354.52 is: 98,072.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,211.32 : 247,918.74 = 65,354.52 : x
  2. Step 2: Convert to fraction form
    165,211.32/247,918.74 = 65,354.52/x
  3. Step 3: Cross multiply
    165,211.32x = 247,918.74 × 65,354.52
  4. Step 4: Simplify right side
    165,211.32x = 16,202,610,251.70
  5. Step 5: Solve for x
    x = 16,202,610,251.70/165,211.32
  6. Step 6: Final answer
    x = 98,072.03

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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.