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Finding the Fourth Proportional to 71,230.54, 106,870.38 and 26,869.95

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Solution

The fourth proportional to 71,230.54, 106,870.38 and 26,869.95 is: 40,314.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,230.54 : 106,870.38 = 26,869.95 : x
  2. Step 2: Convert to fraction form
    71,230.54/106,870.38 = 26,869.95/x
  3. Step 3: Cross multiply
    71,230.54x = 106,870.38 × 26,869.95
  4. Step 4: Simplify right side
    71,230.54x = 2,871,601,767.08
  5. Step 5: Solve for x
    x = 2,871,601,767.08/71,230.54
  6. Step 6: Final answer
    x = 40,314.19

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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.