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Finding the Fourth Proportional to 83,658.84, 115,449.46 and 45,935.56

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Solution

The fourth proportional to 83,658.84, 115,449.46 and 45,935.56 is: 63,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,658.84 : 115,449.46 = 45,935.56 : x
  2. Step 2: Convert to fraction form
    83,658.84/115,449.46 = 45,935.56/x
  3. Step 3: Cross multiply
    83,658.84x = 115,449.46 × 45,935.56
  4. Step 4: Simplify right side
    83,658.84x = 5,303,235,596.80
  5. Step 5: Solve for x
    x = 5,303,235,596.80/83,658.84
  6. Step 6: Final answer
    x = 63,391.22

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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.