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Finding the Fourth Proportional to 243,843.40, 365,728.14 and 66,364.24

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Solution

The fourth proportional to 243,843.40, 365,728.14 and 66,364.24 is: 99,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,843.40 : 365,728.14 = 66,364.24 : x
  2. Step 2: Convert to fraction form
    243,843.40/365,728.14 = 66,364.24/x
  3. Step 3: Cross multiply
    243,843.40x = 365,728.14 × 66,364.24
  4. Step 4: Simplify right side
    243,843.40x = 24,271,269,143.39
  5. Step 5: Solve for x
    x = 24,271,269,143.39/243,843.40
  6. Step 6: Final answer
    x = 99,536.30

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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.