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Finding the Fourth Proportional to 90,604.68, 125,152.14 and 68,962.94

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Solution

The fourth proportional to 90,604.68, 125,152.14 and 68,962.94 is: 95,258.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,604.68 : 125,152.14 = 68,962.94 : x
  2. Step 2: Convert to fraction form
    90,604.68/125,152.14 = 68,962.94/x
  3. Step 3: Cross multiply
    90,604.68x = 125,152.14 × 68,962.94
  4. Step 4: Simplify right side
    90,604.68x = 8,630,859,939.93
  5. Step 5: Solve for x
    x = 8,630,859,939.93/90,604.68
  6. Step 6: Final answer
    x = 95,258.44

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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.