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Finding the Fourth Proportional to 67,344.70, 92,929.26 and 65,081.02

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Solution

The fourth proportional to 67,344.70, 92,929.26 and 65,081.02 is: 89,805.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,344.70 : 92,929.26 = 65,081.02 : x
  2. Step 2: Convert to fraction form
    67,344.70/92,929.26 = 65,081.02/x
  3. Step 3: Cross multiply
    67,344.70x = 92,929.26 × 65,081.02
  4. Step 4: Simplify right side
    67,344.70x = 6,047,931,028.65
  5. Step 5: Solve for x
    x = 6,047,931,028.65/67,344.70
  6. Step 6: Final answer
    x = 89,805.60

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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.