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Finding the Fourth Proportional to 83,250.28, 114,976.74 and 56,518.12

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Solution

The fourth proportional to 83,250.28, 114,976.74 and 56,518.12 is: 78,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,250.28 : 114,976.74 = 56,518.12 : x
  2. Step 2: Convert to fraction form
    83,250.28/114,976.74 = 56,518.12/x
  3. Step 3: Cross multiply
    83,250.28x = 114,976.74 × 56,518.12
  4. Step 4: Simplify right side
    83,250.28x = 6,498,269,188.53
  5. Step 5: Solve for x
    x = 6,498,269,188.53/83,250.28
  6. Step 6: Final answer
    x = 78,057.03

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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.