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Finding the Fourth Proportional to 185,634.80, 278,452.20 and 166,389.20

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Solution

The fourth proportional to 185,634.80, 278,452.20 and 166,389.20 is: 249,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,634.80 : 278,452.20 = 166,389.20 : x
  2. Step 2: Convert to fraction form
    185,634.80/278,452.20 = 166,389.20/x
  3. Step 3: Cross multiply
    185,634.80x = 278,452.20 × 166,389.20
  4. Step 4: Simplify right side
    185,634.80x = 46,331,438,796.24
  5. Step 5: Solve for x
    x = 46,331,438,796.24/185,634.80
  6. Step 6: Final answer
    x = 249,583.80

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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.