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Finding the Fourth Proportional to 243,520.55, 365,280.83 and 110,660.30

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Solution

The fourth proportional to 243,520.55, 365,280.83 and 110,660.30 is: 165,990.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,520.55 : 365,280.83 = 110,660.30 : x
  2. Step 2: Convert to fraction form
    243,520.55/365,280.83 = 110,660.30/x
  3. Step 3: Cross multiply
    243,520.55x = 365,280.83 × 110,660.30
  4. Step 4: Simplify right side
    243,520.55x = 40,422,085,678.75
  5. Step 5: Solve for x
    x = 40,422,085,678.75/243,520.55
  6. Step 6: Final answer
    x = 165,990.45

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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.