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Finding the Fourth Proportional to 125,807.75, 173,612.96 and 68,446.41

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Solution

The fourth proportional to 125,807.75, 173,612.96 and 68,446.41 is: 94,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,807.75 : 173,612.96 = 68,446.41 : x
  2. Step 2: Convert to fraction form
    125,807.75/173,612.96 = 68,446.41/x
  3. Step 3: Cross multiply
    125,807.75x = 173,612.96 × 68,446.41
  4. Step 4: Simplify right side
    125,807.75x = 11,883,183,841.47
  5. Step 5: Solve for x
    x = 11,883,183,841.47/125,807.75
  6. Step 6: Final answer
    x = 94,455.10

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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.