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Finding the Fourth Proportional to 243,463.20, 365,194.80 and 65,992.20

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Solution

The fourth proportional to 243,463.20, 365,194.80 and 65,992.20 is: 98,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,463.20 : 365,194.80 = 65,992.20 : x
  2. Step 2: Convert to fraction form
    243,463.20/365,194.80 = 65,992.20/x
  3. Step 3: Cross multiply
    243,463.20x = 365,194.80 × 65,992.20
  4. Step 4: Simplify right side
    243,463.20x = 24,100,008,280.56
  5. Step 5: Solve for x
    x = 24,100,008,280.56/243,463.20
  6. Step 6: Final answer
    x = 98,988.30

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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.