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Finding the Fourth Proportional to 83,276.70, 114,920.91 and 45,550.50

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Solution

The fourth proportional to 83,276.70, 114,920.91 and 45,550.50 is: 62,859.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,276.70 : 114,920.91 = 45,550.50 : x
  2. Step 2: Convert to fraction form
    83,276.70/114,920.91 = 45,550.50/x
  3. Step 3: Cross multiply
    83,276.70x = 114,920.91 × 45,550.50
  4. Step 4: Simplify right side
    83,276.70x = 5,234,704,910.96
  5. Step 5: Solve for x
    x = 5,234,704,910.96/83,276.70
  6. Step 6: Final answer
    x = 62,859.18

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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.