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Finding the Fourth Proportional to 111,534.51, 153,912.36 and 60,546.09

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Solution

The fourth proportional to 111,534.51, 153,912.36 and 60,546.09 is: 83,550.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,534.51 : 153,912.36 = 60,546.09 : x
  2. Step 2: Convert to fraction form
    111,534.51/153,912.36 = 60,546.09/x
  3. Step 3: Cross multiply
    111,534.51x = 153,912.36 × 60,546.09
  4. Step 4: Simplify right side
    111,534.51x = 9,318,791,600.67
  5. Step 5: Solve for x
    x = 9,318,791,600.67/111,534.51
  6. Step 6: Final answer
    x = 83,550.75

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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.