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Finding the Fourth Proportional to 125,641.72, 173,383.50 and 69,051.88

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Solution

The fourth proportional to 125,641.72, 173,383.50 and 69,051.88 is: 95,290.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,641.72 : 173,383.50 = 69,051.88 : x
  2. Step 2: Convert to fraction form
    125,641.72/173,383.50 = 69,051.88/x
  3. Step 3: Cross multiply
    125,641.72x = 173,383.50 × 69,051.88
  4. Step 4: Simplify right side
    125,641.72x = 11,972,456,635.98
  5. Step 5: Solve for x
    x = 11,972,456,635.98/125,641.72
  6. Step 6: Final answer
    x = 95,290.45

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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.