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Finding the Fourth Proportional to 243,392.70, 365,061.38 and 65,913.55

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Solution

The fourth proportional to 243,392.70, 365,061.38 and 65,913.55 is: 98,862.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,392.70 : 365,061.38 = 65,913.55 : x
  2. Step 2: Convert to fraction form
    243,392.70/365,061.38 = 65,913.55/x
  3. Step 3: Cross multiply
    243,392.70x = 365,061.38 × 65,913.55
  4. Step 4: Simplify right side
    243,392.70x = 24,062,491,523.70
  5. Step 5: Solve for x
    x = 24,062,491,523.70/243,392.70
  6. Step 6: Final answer
    x = 98,862.83

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1.5x scale

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.