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Finding the Fourth Proportional to 124,466.50, 171,763.77 and 67,878.28

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Solution

The fourth proportional to 124,466.50, 171,763.77 and 67,878.28 is: 93,672.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,466.50 : 171,763.77 = 67,878.28 : x
  2. Step 2: Convert to fraction form
    124,466.50/171,763.77 = 67,878.28/x
  3. Step 3: Cross multiply
    124,466.50x = 171,763.77 × 67,878.28
  4. Step 4: Simplify right side
    124,466.50x = 11,659,029,273.92
  5. Step 5: Solve for x
    x = 11,659,029,273.92/124,466.50
  6. Step 6: Final answer
    x = 93,672.03

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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.