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Finding the Fourth Proportional to 125,971.65, 173,840.87 and 69,383.03

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Solution

The fourth proportional to 125,971.65, 173,840.87 and 69,383.03 is: 95,748.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,971.65 : 173,840.87 = 69,383.03 : x
  2. Step 2: Convert to fraction form
    125,971.65/173,840.87 = 69,383.03/x
  3. Step 3: Cross multiply
    125,971.65x = 173,840.87 × 69,383.03
  4. Step 4: Simplify right side
    125,971.65x = 12,061,605,082.32
  5. Step 5: Solve for x
    x = 12,061,605,082.32/125,971.65
  6. Step 6: Final answer
    x = 95,748.57

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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.