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Finding the Fourth Proportional to 111,033.56, 153,240.92 and 63,275.96

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Solution

The fourth proportional to 111,033.56, 153,240.92 and 63,275.96 is: 87,329.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,033.56 : 153,240.92 = 63,275.96 : x
  2. Step 2: Convert to fraction form
    111,033.56/153,240.92 = 63,275.96/x
  3. Step 3: Cross multiply
    111,033.56x = 153,240.92 × 63,275.96
  4. Step 4: Simplify right side
    111,033.56x = 9,696,465,241.70
  5. Step 5: Solve for x
    x = 9,696,465,241.70/111,033.56
  6. Step 6: Final answer
    x = 87,329.14

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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.