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Finding the Fourth Proportional to 201,580.61, 278,181.29 and 110,936.55

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Solution

The fourth proportional to 201,580.61, 278,181.29 and 110,936.55 is: 153,092.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,580.61 : 278,181.29 = 110,936.55 : x
  2. Step 2: Convert to fraction form
    201,580.61/278,181.29 = 110,936.55/x
  3. Step 3: Cross multiply
    201,580.61x = 278,181.29 × 110,936.55
  4. Step 4: Simplify right side
    201,580.61x = 30,860,472,587.15
  5. Step 5: Solve for x
    x = 30,860,472,587.15/201,580.61
  6. Step 6: Final answer
    x = 153,092.47

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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.