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Finding the Fourth Proportional to 163,608.60, 245,429.10 and 56,976.15

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Solution

The fourth proportional to 163,608.60, 245,429.10 and 56,976.15 is: 85,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,608.60 : 245,429.10 = 56,976.15 : x
  2. Step 2: Convert to fraction form
    163,608.60/245,429.10 = 56,976.15/x
  3. Step 3: Cross multiply
    163,608.60x = 245,429.10 × 56,976.15
  4. Step 4: Simplify right side
    163,608.60x = 13,983,605,215.97
  5. Step 5: Solve for x
    x = 13,983,605,215.97/163,608.60
  6. Step 6: Final answer
    x = 85,469.87

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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.