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Finding the Fourth Proportional to 77,222.04, 115,853.04 and 21,818.04

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Solution

The fourth proportional to 77,222.04, 115,853.04 and 21,818.04 is: 32,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,222.04 : 115,853.04 = 21,818.04 : x
  2. Step 2: Convert to fraction form
    77,222.04/115,853.04 = 21,818.04/x
  3. Step 3: Cross multiply
    77,222.04x = 115,853.04 × 21,818.04
  4. Step 4: Simplify right side
    77,222.04x = 2,527,686,260.84
  5. Step 5: Solve for x
    x = 2,527,686,260.84/77,222.04
  6. Step 6: Final answer
    x = 32,732.71

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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.