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Finding the Fourth Proportional to 110,079.73, 151,956.53 and 74,318.18

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Solution

The fourth proportional to 110,079.73, 151,956.53 and 74,318.18 is: 102,590.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,079.73 : 151,956.53 = 74,318.18 : x
  2. Step 2: Convert to fraction form
    110,079.73/151,956.53 = 74,318.18/x
  3. Step 3: Cross multiply
    110,079.73x = 151,956.53 × 74,318.18
  4. Step 4: Simplify right side
    110,079.73x = 11,293,131,617.34
  5. Step 5: Solve for x
    x = 11,293,131,617.34/110,079.73
  6. Step 6: Final answer
    x = 102,590.47

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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.