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Finding the Fourth Proportional to 132,963.32, 183,407.82 and 90,540.92

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Solution

The fourth proportional to 132,963.32, 183,407.82 and 90,540.92 is: 124,890.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,963.32 : 183,407.82 = 90,540.92 : x
  2. Step 2: Convert to fraction form
    132,963.32/183,407.82 = 90,540.92/x
  3. Step 3: Cross multiply
    132,963.32x = 183,407.82 × 90,540.92
  4. Step 4: Simplify right side
    132,963.32x = 16,605,912,757.99
  5. Step 5: Solve for x
    x = 16,605,912,757.99/132,963.32
  6. Step 6: Final answer
    x = 124,890.93

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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.