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Finding the Fourth Proportional to 80,700.96, 111,355.32 and 44,891.40

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Solution

The fourth proportional to 80,700.96, 111,355.32 and 44,891.40 is: 61,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,700.96 : 111,355.32 = 44,891.40 : x
  2. Step 2: Convert to fraction form
    80,700.96/111,355.32 = 44,891.40/x
  3. Step 3: Cross multiply
    80,700.96x = 111,355.32 × 44,891.40
  4. Step 4: Simplify right side
    80,700.96x = 4,998,896,212.25
  5. Step 5: Solve for x
    x = 4,998,896,212.25/80,700.96
  6. Step 6: Final answer
    x = 61,943.45

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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.