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Finding the Fourth Proportional to 111,104.54, 153,324.16 and 62,716.65

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Solution

The fourth proportional to 111,104.54, 153,324.16 and 62,716.65 is: 86,548.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,104.54 : 153,324.16 = 62,716.65 : x
  2. Step 2: Convert to fraction form
    111,104.54/153,324.16 = 62,716.65/x
  3. Step 3: Cross multiply
    111,104.54x = 153,324.16 × 62,716.65
  4. Step 4: Simplify right side
    111,104.54x = 9,615,977,679.26
  5. Step 5: Solve for x
    x = 9,615,977,679.26/111,104.54
  6. Step 6: Final answer
    x = 86,548.92

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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.