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Finding the Fourth Proportional to 111,620.61, 166,628.03 and 95,653.89

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Solution

The fourth proportional to 111,620.61, 166,628.03 and 95,653.89 is: 142,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,620.61 : 166,628.03 = 95,653.89 : x
  2. Step 2: Convert to fraction form
    111,620.61/166,628.03 = 95,653.89/x
  3. Step 3: Cross multiply
    111,620.61x = 166,628.03 × 95,653.89
  4. Step 4: Simplify right side
    111,620.61x = 15,938,618,774.27
  5. Step 5: Solve for x
    x = 15,938,618,774.27/111,620.61
  6. Step 6: Final answer
    x = 142,792.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.