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Finding the Fourth Proportional to 154,112.88, 231,103.68 and 60,553

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Solution

The fourth proportional to 154,112.88, 231,103.68 and 60,553 is: 90,803.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,112.88 : 231,103.68 = 60,553 : x
  2. Step 2: Convert to fraction form
    154,112.88/231,103.68 = 60,553/x
  3. Step 3: Cross multiply
    154,112.88x = 231,103.68 × 60,553
  4. Step 4: Simplify right side
    154,112.88x = 13,994,021,135.04
  5. Step 5: Solve for x
    x = 13,994,021,135.04/154,112.88
  6. Step 6: Final answer
    x = 90,803.71

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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.