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Finding the Fourth Proportional to 45,861.16, 68,689.02 and 39,861.16

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Solution

The fourth proportional to 45,861.16, 68,689.02 and 39,861.16 is: 59,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,861.16 : 68,689.02 = 39,861.16 : x
  2. Step 2: Convert to fraction form
    45,861.16/68,689.02 = 39,861.16/x
  3. Step 3: Cross multiply
    45,861.16x = 68,689.02 × 39,861.16
  4. Step 4: Simplify right side
    45,861.16x = 2,738,024,016.46
  5. Step 5: Solve for x
    x = 2,738,024,016.46/45,861.16
  6. Step 6: Final answer
    x = 59,702.46

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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.