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Finding the Fourth Proportional to 111,025.54, 153,218.91 and 60,724.54

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Solution

The fourth proportional to 111,025.54, 153,218.91 and 60,724.54 is: 83,801.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,025.54 : 153,218.91 = 60,724.54 : x
  2. Step 2: Convert to fraction form
    111,025.54/153,218.91 = 60,724.54/x
  3. Step 3: Cross multiply
    111,025.54x = 153,218.91 × 60,724.54
  4. Step 4: Simplify right side
    111,025.54x = 9,304,147,829.05
  5. Step 5: Solve for x
    x = 9,304,147,829.05/111,025.54
  6. Step 6: Final answer
    x = 83,801.87

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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.