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Finding the Fourth Proportional to 91,480.59, 126,247.10 and 56,562.84

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Solution

The fourth proportional to 91,480.59, 126,247.10 and 56,562.84 is: 78,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,480.59 : 126,247.10 = 56,562.84 : x
  2. Step 2: Convert to fraction form
    91,480.59/126,247.10 = 56,562.84/x
  3. Step 3: Cross multiply
    91,480.59x = 126,247.10 × 56,562.84
  4. Step 4: Simplify right side
    91,480.59x = 7,140,894,234.95
  5. Step 5: Solve for x
    x = 7,140,894,234.95/91,480.59
  6. Step 6: Final answer
    x = 78,059.12

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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.