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Finding the Fourth Proportional to 79,821.16, 119,767.02 and 41,861.32

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Solution

The fourth proportional to 79,821.16, 119,767.02 and 41,861.32 is: 62,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.16 : 119,767.02 = 41,861.32 : x
  2. Step 2: Convert to fraction form
    79,821.16/119,767.02 = 41,861.32/x
  3. Step 3: Cross multiply
    79,821.16x = 119,767.02 × 41,861.32
  4. Step 4: Simplify right side
    79,821.16x = 5,013,605,549.67
  5. Step 5: Solve for x
    x = 5,013,605,549.67/79,821.16
  6. Step 6: Final answer
    x = 62,810.48

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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.