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Finding the Fourth Proportional to 111,752.73, 154,220.69 and 60,765.81

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Solution

The fourth proportional to 111,752.73, 154,220.69 and 60,765.81 is: 83,857.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,752.73 : 154,220.69 = 60,765.81 : x
  2. Step 2: Convert to fraction form
    111,752.73/154,220.69 = 60,765.81/x
  3. Step 3: Cross multiply
    111,752.73x = 154,220.69 × 60,765.81
  4. Step 4: Simplify right side
    111,752.73x = 9,371,345,587.69
  5. Step 5: Solve for x
    x = 9,371,345,587.69/111,752.73
  6. Step 6: Final answer
    x = 83,857.87

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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.