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Finding the Fourth Proportional to 201,568.89, 278,165.12 and 110,924.86

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Solution

The fourth proportional to 201,568.89, 278,165.12 and 110,924.86 is: 153,076.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,568.89 : 278,165.12 = 110,924.86 : x
  2. Step 2: Convert to fraction form
    201,568.89/278,165.12 = 110,924.86/x
  3. Step 3: Cross multiply
    201,568.89x = 278,165.12 × 110,924.86
  4. Step 4: Simplify right side
    201,568.89x = 30,855,426,992.88
  5. Step 5: Solve for x
    x = 30,855,426,992.88/201,568.89
  6. Step 6: Final answer
    x = 153,076.34

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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.