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Finding the Fourth Proportional to 83,116.88, 114,701.93 and 45,391.13

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Solution

The fourth proportional to 83,116.88, 114,701.93 and 45,391.13 is: 62,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,116.88 : 114,701.93 = 45,391.13 : x
  2. Step 2: Convert to fraction form
    83,116.88/114,701.93 = 45,391.13/x
  3. Step 3: Cross multiply
    83,116.88x = 114,701.93 × 45,391.13
  4. Step 4: Simplify right side
    83,116.88x = 5,206,449,415.42
  5. Step 5: Solve for x
    x = 5,206,449,415.42/83,116.88
  6. Step 6: Final answer
    x = 62,640.10

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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.