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Finding the Fourth Proportional to 101,652.56, 140,287.92 and 61,376.12

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Solution

The fourth proportional to 101,652.56, 140,287.92 and 61,376.12 is: 84,703.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,652.56 : 140,287.92 = 61,376.12 : x
  2. Step 2: Convert to fraction form
    101,652.56/140,287.92 = 61,376.12/x
  3. Step 3: Cross multiply
    101,652.56x = 140,287.92 × 61,376.12
  4. Step 4: Simplify right side
    101,652.56x = 8,610,328,212.47
  5. Step 5: Solve for x
    x = 8,610,328,212.47/101,652.56
  6. Step 6: Final answer
    x = 84,703.51

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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.