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Finding the Fourth Proportional to 89,891.97, 124,048.63 and 49,605.20

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Solution

The fourth proportional to 89,891.97, 124,048.63 and 49,605.20 is: 68,453.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,891.97 : 124,048.63 = 49,605.20 : x
  2. Step 2: Convert to fraction form
    89,891.97/124,048.63 = 49,605.20/x
  3. Step 3: Cross multiply
    89,891.97x = 124,048.63 × 49,605.20
  4. Step 4: Simplify right side
    89,891.97x = 6,153,456,852.85
  5. Step 5: Solve for x
    x = 6,153,456,852.85/89,891.97
  6. Step 6: Final answer
    x = 68,453.91

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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.