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Finding the Fourth Proportional to 243,885.87, 365,791.82 and 66,406.84

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Solution

The fourth proportional to 243,885.87, 365,791.82 and 66,406.84 is: 99,600.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,885.87 : 365,791.82 = 66,406.84 : x
  2. Step 2: Convert to fraction form
    243,885.87/365,791.82 = 66,406.84/x
  3. Step 3: Cross multiply
    243,885.87x = 365,791.82 × 66,406.84
  4. Step 4: Simplify right side
    243,885.87x = 24,291,077,617.54
  5. Step 5: Solve for x
    x = 24,291,077,617.54/243,885.87
  6. Step 6: Final answer
    x = 99,600.18

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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.