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Finding the Fourth Proportional to 71,202.70, 98,259.77 and 40,574.93

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Solution

The fourth proportional to 71,202.70, 98,259.77 and 40,574.93 is: 55,993.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,202.70 : 98,259.77 = 40,574.93 : x
  2. Step 2: Convert to fraction form
    71,202.70/98,259.77 = 40,574.93/x
  3. Step 3: Cross multiply
    71,202.70x = 98,259.77 × 40,574.93
  4. Step 4: Simplify right side
    71,202.70x = 3,986,882,595.39
  5. Step 5: Solve for x
    x = 3,986,882,595.39/71,202.70
  6. Step 6: Final answer
    x = 55,993.42

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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.