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Finding the Fourth Proportional to 111,494.96, 153,761.31 and 73,239.16

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Solution

The fourth proportional to 111,494.96, 153,761.31 and 73,239.16 is: 101,003.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,494.96 : 153,761.31 = 73,239.16 : x
  2. Step 2: Convert to fraction form
    111,494.96/153,761.31 = 73,239.16/x
  3. Step 3: Cross multiply
    111,494.96x = 153,761.31 × 73,239.16
  4. Step 4: Simplify right side
    111,494.96x = 11,261,349,184.90
  5. Step 5: Solve for x
    x = 11,261,349,184.90/111,494.96
  6. Step 6: Final answer
    x = 101,003.21

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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.