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Finding the Fourth Proportional to 160,131.92, 220,976.78 and 88,511.58

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Solution

The fourth proportional to 160,131.92, 220,976.78 and 88,511.58 is: 122,143.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,131.92 : 220,976.78 = 88,511.58 : x
  2. Step 2: Convert to fraction form
    160,131.92/220,976.78 = 88,511.58/x
  3. Step 3: Cross multiply
    160,131.92x = 220,976.78 × 88,511.58
  4. Step 4: Simplify right side
    160,131.92x = 19,559,003,498.55
  5. Step 5: Solve for x
    x = 19,559,003,498.55/160,131.92
  6. Step 6: Final answer
    x = 122,143.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.