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Finding the Fourth Proportional to 111,710.55, 154,160.26 and 60,723.28

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Solution

The fourth proportional to 111,710.55, 154,160.26 and 60,723.28 is: 83,797.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,710.55 : 154,160.26 = 60,723.28 : x
  2. Step 2: Convert to fraction form
    111,710.55/154,160.26 = 60,723.28/x
  3. Step 3: Cross multiply
    111,710.55x = 154,160.26 × 60,723.28
  4. Step 4: Simplify right side
    111,710.55x = 9,361,116,632.85
  5. Step 5: Solve for x
    x = 9,361,116,632.85/111,710.55
  6. Step 6: Final answer
    x = 83,797.96

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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.