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Finding the Fourth Proportional to 107,049.87, 147,722.54 and 58,642.20

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Solution

The fourth proportional to 107,049.87, 147,722.54 and 58,642.20 is: 80,922.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,049.87 : 147,722.54 = 58,642.20 : x
  2. Step 2: Convert to fraction form
    107,049.87/147,722.54 = 58,642.20/x
  3. Step 3: Cross multiply
    107,049.87x = 147,722.54 × 58,642.20
  4. Step 4: Simplify right side
    107,049.87x = 8,662,774,441.98
  5. Step 5: Solve for x
    x = 8,662,774,441.98/107,049.87
  6. Step 6: Final answer
    x = 80,922.79

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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.