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Finding the Fourth Proportional to 400,883.58, 601,339.95 and 134,652.78

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Solution

The fourth proportional to 400,883.58, 601,339.95 and 134,652.78 is: 201,984.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,883.58 : 601,339.95 = 134,652.78 : x
  2. Step 2: Convert to fraction form
    400,883.58/601,339.95 = 134,652.78/x
  3. Step 3: Cross multiply
    400,883.58x = 601,339.95 × 134,652.78
  4. Step 4: Simplify right side
    400,883.58x = 80,972,095,992.56
  5. Step 5: Solve for x
    x = 80,972,095,992.56/400,883.58
  6. Step 6: Final answer
    x = 201,984.07

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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.