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Finding the Fourth Proportional to 75,238.61, 112,864.85 and 27,219.23

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Solution

The fourth proportional to 75,238.61, 112,864.85 and 27,219.23 is: 40,831.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,238.61 : 112,864.85 = 27,219.23 : x
  2. Step 2: Convert to fraction form
    75,238.61/112,864.85 = 27,219.23/x
  3. Step 3: Cross multiply
    75,238.61x = 112,864.85 × 27,219.23
  4. Step 4: Simplify right side
    75,238.61x = 3,072,093,610.65
  5. Step 5: Solve for x
    x = 3,072,093,610.65/75,238.61
  6. Step 6: Final answer
    x = 40,831.35

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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.