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Finding the Fourth Proportional to 83,616.93, 115,391.03 and 45,376.65

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Solution

The fourth proportional to 83,616.93, 115,391.03 and 45,376.65 is: 62,619.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.93 : 115,391.03 = 45,376.65 : x
  2. Step 2: Convert to fraction form
    83,616.93/115,391.03 = 45,376.65/x
  3. Step 3: Cross multiply
    83,616.93x = 115,391.03 × 45,376.65
  4. Step 4: Simplify right side
    83,616.93x = 5,236,058,154.57
  5. Step 5: Solve for x
    x = 5,236,058,154.57/83,616.93
  6. Step 6: Final answer
    x = 62,619.59

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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.