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Finding the Fourth Proportional to 368,900.85, 552,871.94 and 166,348.20

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Solution

The fourth proportional to 368,900.85, 552,871.94 and 166,348.20 is: 249,306.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,900.85 : 552,871.94 = 166,348.20 : x
  2. Step 2: Convert to fraction form
    368,900.85/552,871.94 = 166,348.20/x
  3. Step 3: Cross multiply
    368,900.85x = 552,871.94 × 166,348.20
  4. Step 4: Simplify right side
    368,900.85x = 91,969,251,217.77
  5. Step 5: Solve for x
    x = 91,969,251,217.77/368,900.85
  6. Step 6: Final answer
    x = 249,306.15

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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.