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Finding the Fourth Proportional to 124,361.93, 171,211.12 and 104,186.86

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Solution

The fourth proportional to 124,361.93, 171,211.12 and 104,186.86 is: 143,435.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,361.93 : 171,211.12 = 104,186.86 : x
  2. Step 2: Convert to fraction form
    124,361.93/171,211.12 = 104,186.86/x
  3. Step 3: Cross multiply
    124,361.93x = 171,211.12 × 104,186.86
  4. Step 4: Simplify right side
    124,361.93x = 17,837,948,301.39
  5. Step 5: Solve for x
    x = 17,837,948,301.39/124,361.93
  6. Step 6: Final answer
    x = 143,435.76

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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.