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Finding the Fourth Proportional to 201,992.96, 278,750.24 and 111,350.44

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Solution

The fourth proportional to 201,992.96, 278,750.24 and 111,350.44 is: 153,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,992.96 : 278,750.24 = 111,350.44 : x
  2. Step 2: Convert to fraction form
    201,992.96/278,750.24 = 111,350.44/x
  3. Step 3: Cross multiply
    201,992.96x = 278,750.24 × 111,350.44
  4. Step 4: Simplify right side
    201,992.96x = 31,038,961,874.11
  5. Step 5: Solve for x
    x = 31,038,961,874.11/201,992.96
  6. Step 6: Final answer
    x = 153,663.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.