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Finding the Fourth Proportional to 69,548.40, 104,127.72 and 36,195.76

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Solution

The fourth proportional to 69,548.40, 104,127.72 and 36,195.76 is: 54,192.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,548.40 : 104,127.72 = 36,195.76 : x
  2. Step 2: Convert to fraction form
    69,548.40/104,127.72 = 36,195.76/x
  3. Step 3: Cross multiply
    69,548.40x = 104,127.72 × 36,195.76
  4. Step 4: Simplify right side
    69,548.40x = 3,768,981,962.47
  5. Step 5: Solve for x
    x = 3,768,981,962.47/69,548.40
  6. Step 6: Final answer
    x = 54,192.22

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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.