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Finding the Fourth Proportional to 103,888.80, 143,370.72 and 58,568.46

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Solution

The fourth proportional to 103,888.80, 143,370.72 and 58,568.46 is: 80,826.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,888.80 : 143,370.72 = 58,568.46 : x
  2. Step 2: Convert to fraction form
    103,888.80/143,370.72 = 58,568.46/x
  3. Step 3: Cross multiply
    103,888.80x = 143,370.72 × 58,568.46
  4. Step 4: Simplify right side
    103,888.80x = 8,397,002,279.49
  5. Step 5: Solve for x
    x = 8,397,002,279.49/103,888.80
  6. Step 6: Final answer
    x = 80,826.83

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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.