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Finding the Fourth Proportional to 111,150.89, 153,388.23 and 60,849.89

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Solution

The fourth proportional to 111,150.89, 153,388.23 and 60,849.89 is: 83,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,150.89 : 153,388.23 = 60,849.89 : x
  2. Step 2: Convert to fraction form
    111,150.89/153,388.23 = 60,849.89/x
  3. Step 3: Cross multiply
    111,150.89x = 153,388.23 × 60,849.89
  4. Step 4: Simplify right side
    111,150.89x = 9,333,656,922.79
  5. Step 5: Solve for x
    x = 9,333,656,922.79/111,150.89
  6. Step 6: Final answer
    x = 83,972.85

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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.