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Finding the Fourth Proportional to 84,708.81, 127,061.06 and 22,379.85

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Solution

The fourth proportional to 84,708.81, 127,061.06 and 22,379.85 is: 33,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,708.81 : 127,061.06 = 22,379.85 : x
  2. Step 2: Convert to fraction form
    84,708.81/127,061.06 = 22,379.85/x
  3. Step 3: Cross multiply
    84,708.81x = 127,061.06 × 22,379.85
  4. Step 4: Simplify right side
    84,708.81x = 2,843,607,351.74
  5. Step 5: Solve for x
    x = 2,843,607,351.74/84,708.81
  6. Step 6: Final answer
    x = 33,569.20

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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.