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Finding the Fourth Proportional to 111,257.52, 153,537.80 and 60,956.52

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Solution

The fourth proportional to 111,257.52, 153,537.80 and 60,956.52 is: 84,121.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,257.52 : 153,537.80 = 60,956.52 : x
  2. Step 2: Convert to fraction form
    111,257.52/153,537.80 = 60,956.52/x
  3. Step 3: Cross multiply
    111,257.52x = 153,537.80 × 60,956.52
  4. Step 4: Simplify right side
    111,257.52x = 9,359,129,976.46
  5. Step 5: Solve for x
    x = 9,359,129,976.46/111,257.52
  6. Step 6: Final answer
    x = 84,121.32

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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.