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Finding the Fourth Proportional to 125,418.84, 173,077.12 and 68,056.71

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Solution

The fourth proportional to 125,418.84, 173,077.12 and 68,056.71 is: 93,917.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,418.84 : 173,077.12 = 68,056.71 : x
  2. Step 2: Convert to fraction form
    125,418.84/173,077.12 = 68,056.71/x
  3. Step 3: Cross multiply
    125,418.84x = 173,077.12 × 68,056.71
  4. Step 4: Simplify right side
    125,418.84x = 11,779,058,512.39
  5. Step 5: Solve for x
    x = 11,779,058,512.39/125,418.84
  6. Step 6: Final answer
    x = 93,917.77

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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.