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Finding the Fourth Proportional to 68,391, 102,376.29 and 58,301.92

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Solution

The fourth proportional to 68,391, 102,376.29 and 58,301.92 is: 87,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,391 : 102,376.29 = 58,301.92 : x
  2. Step 2: Convert to fraction form
    68,391/102,376.29 = 58,301.92/x
  3. Step 3: Cross multiply
    68,391x = 102,376.29 × 58,301.92
  4. Step 4: Simplify right side
    68,391x = 5,968,734,013.54
  5. Step 5: Solve for x
    x = 5,968,734,013.54/68,391
  6. Step 6: Final answer
    x = 87,273.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.