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Finding the Fourth Proportional to 69,561.36, 96,009.84 and 42,717.96

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Solution

The fourth proportional to 69,561.36, 96,009.84 and 42,717.96 is: 58,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,561.36 : 96,009.84 = 42,717.96 : x
  2. Step 2: Convert to fraction form
    69,561.36/96,009.84 = 42,717.96/x
  3. Step 3: Cross multiply
    69,561.36x = 96,009.84 × 42,717.96
  4. Step 4: Simplify right side
    69,561.36x = 4,101,344,504.73
  5. Step 5: Solve for x
    x = 4,101,344,504.73/69,561.36
  6. Step 6: Final answer
    x = 58,960.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.