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Finding the Fourth Proportional to 103,089.93, 154,372.39 and 67,922.97

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Solution

The fourth proportional to 103,089.93, 154,372.39 and 67,922.97 is: 101,711.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,089.93 : 154,372.39 = 67,922.97 : x
  2. Step 2: Convert to fraction form
    103,089.93/154,372.39 = 67,922.97/x
  3. Step 3: Cross multiply
    103,089.93x = 154,372.39 × 67,922.97
  4. Step 4: Simplify right side
    103,089.93x = 10,485,431,044.99
  5. Step 5: Solve for x
    x = 10,485,431,044.99/103,089.93
  6. Step 6: Final answer
    x = 101,711.50

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1.5x scale

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.