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Finding the Fourth Proportional to 164,863.20, 247,359.60 and 65,006.40

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Solution

The fourth proportional to 164,863.20, 247,359.60 and 65,006.40 is: 97,535.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,863.20 : 247,359.60 = 65,006.40 : x
  2. Step 2: Convert to fraction form
    164,863.20/247,359.60 = 65,006.40/x
  3. Step 3: Cross multiply
    164,863.20x = 247,359.60 × 65,006.40
  4. Step 4: Simplify right side
    164,863.20x = 16,079,957,101.44
  5. Step 5: Solve for x
    x = 16,079,957,101.44/164,863.20
  6. Step 6: Final answer
    x = 97,535.15

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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.