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Finding the Fourth Proportional to 136,773.72, 205,521.39 and 73,640.52

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Solution

The fourth proportional to 136,773.72, 205,521.39 and 73,640.52 is: 110,655.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,773.72 : 205,521.39 = 73,640.52 : x
  2. Step 2: Convert to fraction form
    136,773.72/205,521.39 = 73,640.52/x
  3. Step 3: Cross multiply
    136,773.72x = 205,521.39 × 73,640.52
  4. Step 4: Simplify right side
    136,773.72x = 15,134,702,030.72
  5. Step 5: Solve for x
    x = 15,134,702,030.72/136,773.72
  6. Step 6: Final answer
    x = 110,655.04

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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.