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Finding the Fourth Proportional to 243,398.20, 365,069.62 and 65,919.04

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Solution

The fourth proportional to 243,398.20, 365,069.62 and 65,919.04 is: 98,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,398.20 : 365,069.62 = 65,919.04 : x
  2. Step 2: Convert to fraction form
    243,398.20/365,069.62 = 65,919.04/x
  3. Step 3: Cross multiply
    243,398.20x = 365,069.62 × 65,919.04
  4. Step 4: Simplify right side
    243,398.20x = 24,065,038,883.56
  5. Step 5: Solve for x
    x = 24,065,038,883.56/243,398.20
  6. Step 6: Final answer
    x = 98,871.06

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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.