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Finding the Fourth Proportional to 253,902.04, 380,878.28 and 94,020.64

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Solution

The fourth proportional to 253,902.04, 380,878.28 and 94,020.64 is: 141,040.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,902.04 : 380,878.28 = 94,020.64 : x
  2. Step 2: Convert to fraction form
    253,902.04/380,878.28 = 94,020.64/x
  3. Step 3: Cross multiply
    253,902.04x = 380,878.28 × 94,020.64
  4. Step 4: Simplify right side
    253,902.04x = 35,810,419,647.70
  5. Step 5: Solve for x
    x = 35,810,419,647.70/253,902.04
  6. Step 6: Final answer
    x = 141,040.30

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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.