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Finding the Fourth Proportional to 165,081.60, 247,622.40 and 153,927.90

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Solution

The fourth proportional to 165,081.60, 247,622.40 and 153,927.90 is: 230,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,081.60 : 247,622.40 = 153,927.90 : x
  2. Step 2: Convert to fraction form
    165,081.60/247,622.40 = 153,927.90/x
  3. Step 3: Cross multiply
    165,081.60x = 247,622.40 × 153,927.90
  4. Step 4: Simplify right side
    165,081.60x = 38,115,996,024.96
  5. Step 5: Solve for x
    x = 38,115,996,024.96/165,081.60
  6. Step 6: Final answer
    x = 230,891.85

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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.