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Finding the Fourth Proportional to 111,858.68, 154,330.18 and 63,452.61

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Solution

The fourth proportional to 111,858.68, 154,330.18 and 63,452.61 is: 87,544.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,858.68 : 154,330.18 = 63,452.61 : x
  2. Step 2: Convert to fraction form
    111,858.68/154,330.18 = 63,452.61/x
  3. Step 3: Cross multiply
    111,858.68x = 154,330.18 × 63,452.61
  4. Step 4: Simplify right side
    111,858.68x = 9,792,652,564.14
  5. Step 5: Solve for x
    x = 9,792,652,564.14/111,858.68
  6. Step 6: Final answer
    x = 87,544.86

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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.