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Finding the Fourth Proportional to 90,737.91, 125,234.78 and 52,492.95

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Solution

The fourth proportional to 90,737.91, 125,234.78 and 52,492.95 is: 72,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,737.91 : 125,234.78 = 52,492.95 : x
  2. Step 2: Convert to fraction form
    90,737.91/125,234.78 = 52,492.95/x
  3. Step 3: Cross multiply
    90,737.91x = 125,234.78 × 52,492.95
  4. Step 4: Simplify right side
    90,737.91x = 6,573,942,782.34
  5. Step 5: Solve for x
    x = 6,573,942,782.34/90,737.91
  6. Step 6: Final answer
    x = 72,449.79

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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.