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Finding the Fourth Proportional to 248,624.10, 372,936.15 and 154,145.70

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Solution

The fourth proportional to 248,624.10, 372,936.15 and 154,145.70 is: 231,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,624.10 : 372,936.15 = 154,145.70 : x
  2. Step 2: Convert to fraction form
    248,624.10/372,936.15 = 154,145.70/x
  3. Step 3: Cross multiply
    248,624.10x = 372,936.15 × 154,145.70
  4. Step 4: Simplify right side
    248,624.10x = 57,486,503,897.06
  5. Step 5: Solve for x
    x = 57,486,503,897.06/248,624.10
  6. Step 6: Final answer
    x = 231,218.55

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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.