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Finding the Fourth Proportional to 243,486.54, 365,229.81 and 65,993.55

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Solution

The fourth proportional to 243,486.54, 365,229.81 and 65,993.55 is: 98,990.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,486.54 : 365,229.81 = 65,993.55 : x
  2. Step 2: Convert to fraction form
    243,486.54/365,229.81 = 65,993.55/x
  3. Step 3: Cross multiply
    243,486.54x = 365,229.81 × 65,993.55
  4. Step 4: Simplify right side
    243,486.54x = 24,102,811,727.73
  5. Step 5: Solve for x
    x = 24,102,811,727.73/243,486.54
  6. Step 6: Final answer
    x = 98,990.32

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Double scale
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Similar ratio
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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.