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Finding the Fourth Proportional to 83,403.71, 115,097.36 and 45,163.71

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Solution

The fourth proportional to 83,403.71, 115,097.36 and 45,163.71 is: 62,326.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,403.71 : 115,097.36 = 45,163.71 : x
  2. Step 2: Convert to fraction form
    83,403.71/115,097.36 = 45,163.71/x
  3. Step 3: Cross multiply
    83,403.71x = 115,097.36 × 45,163.71
  4. Step 4: Simplify right side
    83,403.71x = 5,198,223,562.99
  5. Step 5: Solve for x
    x = 5,198,223,562.99/83,403.71
  6. Step 6: Final answer
    x = 62,326.05

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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.