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Finding the Fourth Proportional to 124,430.82, 171,718.29 and 67,843.14

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Solution

The fourth proportional to 124,430.82, 171,718.29 and 67,843.14 is: 93,625.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,430.82 : 171,718.29 = 67,843.14 : x
  2. Step 2: Convert to fraction form
    124,430.82/171,718.29 = 67,843.14/x
  3. Step 3: Cross multiply
    124,430.82x = 171,718.29 × 67,843.14
  4. Step 4: Simplify right side
    124,430.82x = 11,649,907,989.03
  5. Step 5: Solve for x
    x = 11,649,907,989.03/124,430.82
  6. Step 6: Final answer
    x = 93,625.58

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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.