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Finding the Fourth Proportional to 83,110.77, 125,227.15 and 68,643.76

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Solution

The fourth proportional to 83,110.77, 125,227.15 and 68,643.76 is: 103,428.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,110.77 : 125,227.15 = 68,643.76 : x
  2. Step 2: Convert to fraction form
    83,110.77/125,227.15 = 68,643.76/x
  3. Step 3: Cross multiply
    83,110.77x = 125,227.15 × 68,643.76
  4. Step 4: Simplify right side
    83,110.77x = 8,596,062,430.08
  5. Step 5: Solve for x
    x = 8,596,062,430.08/83,110.77
  6. Step 6: Final answer
    x = 103,428.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.