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Finding the Fourth Proportional to 125,168.67, 172,737.06 and 68,580.03

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Solution

The fourth proportional to 125,168.67, 172,737.06 and 68,580.03 is: 94,642.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,168.67 : 172,737.06 = 68,580.03 : x
  2. Step 2: Convert to fraction form
    125,168.67/172,737.06 = 68,580.03/x
  3. Step 3: Cross multiply
    125,168.67x = 172,737.06 × 68,580.03
  4. Step 4: Simplify right side
    125,168.67x = 11,846,312,756.91
  5. Step 5: Solve for x
    x = 11,846,312,756.91/125,168.67
  6. Step 6: Final answer
    x = 94,642.79

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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.