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Finding the Fourth Proportional to 140,807.64, 211,232.04 and 40,954.92

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Solution

The fourth proportional to 140,807.64, 211,232.04 and 40,954.92 is: 61,438.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,807.64 : 211,232.04 = 40,954.92 : x
  2. Step 2: Convert to fraction form
    140,807.64/211,232.04 = 40,954.92/x
  3. Step 3: Cross multiply
    140,807.64x = 211,232.04 × 40,954.92
  4. Step 4: Simplify right side
    140,807.64x = 8,650,991,299.64
  5. Step 5: Solve for x
    x = 8,650,991,299.64/140,807.64
  6. Step 6: Final answer
    x = 61,438.37

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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.