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Finding the Fourth Proportional to 111,854.04, 154,353.87 and 60,866.97

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Solution

The fourth proportional to 111,854.04, 154,353.87 and 60,866.97 is: 83,993.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,854.04 : 154,353.87 = 60,866.97 : x
  2. Step 2: Convert to fraction form
    111,854.04/154,353.87 = 60,866.97/x
  3. Step 3: Cross multiply
    111,854.04x = 154,353.87 × 60,866.97
  4. Step 4: Simplify right side
    111,854.04x = 9,395,052,374.67
  5. Step 5: Solve for x
    x = 9,395,052,374.67/111,854.04
  6. Step 6: Final answer
    x = 83,993.86

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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.