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Finding the Fourth Proportional to 400,808.46, 601,241.85 and 134,566.72

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Solution

The fourth proportional to 400,808.46, 601,241.85 and 134,566.72 is: 201,859.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,808.46 : 601,241.85 = 134,566.72 : x
  2. Step 2: Convert to fraction form
    400,808.46/601,241.85 = 134,566.72/x
  3. Step 3: Cross multiply
    400,808.46x = 601,241.85 × 134,566.72
  4. Step 4: Simplify right side
    400,808.46x = 80,907,143,681.23
  5. Step 5: Solve for x
    x = 80,907,143,681.23/400,808.46
  6. Step 6: Final answer
    x = 201,859.87

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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.