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Finding the Fourth Proportional to 90,800.01, 125,302.13 and 50,512.90

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Solution

The fourth proportional to 90,800.01, 125,302.13 and 50,512.90 is: 69,706.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.01 : 125,302.13 = 50,512.90 : x
  2. Step 2: Convert to fraction form
    90,800.01/125,302.13 = 50,512.90/x
  3. Step 3: Cross multiply
    90,800.01x = 125,302.13 × 50,512.90
  4. Step 4: Simplify right side
    90,800.01x = 6,329,373,962.48
  5. Step 5: Solve for x
    x = 6,329,373,962.48/90,800.01
  6. Step 6: Final answer
    x = 69,706.75

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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.