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Finding the Fourth Proportional to 208,067.90, 312,101.85 and 183,962.30

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Solution

The fourth proportional to 208,067.90, 312,101.85 and 183,962.30 is: 275,943.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,067.90 : 312,101.85 = 183,962.30 : x
  2. Step 2: Convert to fraction form
    208,067.90/312,101.85 = 183,962.30/x
  3. Step 3: Cross multiply
    208,067.90x = 312,101.85 × 183,962.30
  4. Step 4: Simplify right side
    208,067.90x = 57,414,974,160.26
  5. Step 5: Solve for x
    x = 57,414,974,160.26/208,067.90
  6. Step 6: Final answer
    x = 275,943.45

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1.5x scale

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.