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Finding the Fourth Proportional to 9,168,655.80, 13,752,983.70 and 8,255,364.60

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Solution

The fourth proportional to 9,168,655.80, 13,752,983.70 and 8,255,364.60 is: 12,383,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168,655.80 : 13,752,983.70 = 8,255,364.60 : x
  2. Step 2: Convert to fraction form
    9,168,655.80/13,752,983.70 = 8,255,364.60/x
  3. Step 3: Cross multiply
    9,168,655.80x = 13,752,983.70 × 8,255,364.60
  4. Step 4: Simplify right side
    9,168,655.80x = 113,535,894,781,357.02
  5. Step 5: Solve for x
    x = 113,535,894,781,357.02/9,168,655.80
  6. Step 6: Final answer
    x = 12,383,046.90

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Similar ratio
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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.