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Finding the Fourth Proportional to 83,340.90, 124,923.87 and 59,954.58

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Solution

The fourth proportional to 83,340.90, 124,923.87 and 59,954.58 is: 89,868.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,340.90 : 124,923.87 = 59,954.58 : x
  2. Step 2: Convert to fraction form
    83,340.90/124,923.87 = 59,954.58/x
  3. Step 3: Cross multiply
    83,340.90x = 124,923.87 × 59,954.58
  4. Step 4: Simplify right side
    83,340.90x = 7,489,758,157.82
  5. Step 5: Solve for x
    x = 7,489,758,157.82/83,340.90
  6. Step 6: Final answer
    x = 89,868.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.