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Finding the Fourth Proportional to 160,116.25, 220,960.64 and 92,131.87

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Solution

The fourth proportional to 160,116.25, 220,960.64 and 92,131.87 is: 127,142.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,116.25 : 220,960.64 = 92,131.87 : x
  2. Step 2: Convert to fraction form
    160,116.25/220,960.64 = 92,131.87/x
  3. Step 3: Cross multiply
    160,116.25x = 220,960.64 × 92,131.87
  4. Step 4: Simplify right side
    160,116.25x = 20,357,517,945.03
  5. Step 5: Solve for x
    x = 20,357,517,945.03/160,116.25
  6. Step 6: Final answer
    x = 127,142.11

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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.