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Finding the Fourth Proportional to 147,101.67, 220,442.01 and 83,791.10

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Solution

The fourth proportional to 147,101.67, 220,442.01 and 83,791.10 is: 125,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,101.67 : 220,442.01 = 83,791.10 : x
  2. Step 2: Convert to fraction form
    147,101.67/220,442.01 = 83,791.10/x
  3. Step 3: Cross multiply
    147,101.67x = 220,442.01 × 83,791.10
  4. Step 4: Simplify right side
    147,101.67x = 18,471,078,504.11
  5. Step 5: Solve for x
    x = 18,471,078,504.11/147,101.67
  6. Step 6: Final answer
    x = 125,566.75

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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.