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Finding the Fourth Proportional to 263,396.98, 363,487.84 and 142,538.28

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Solution

The fourth proportional to 263,396.98, 363,487.84 and 142,538.28 is: 196,702.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,396.98 : 363,487.84 = 142,538.28 : x
  2. Step 2: Convert to fraction form
    263,396.98/363,487.84 = 142,538.28/x
  3. Step 3: Cross multiply
    263,396.98x = 363,487.84 × 142,538.28
  4. Step 4: Simplify right side
    263,396.98x = 51,810,931,514.52
  5. Step 5: Solve for x
    x = 51,810,931,514.52/263,396.98
  6. Step 6: Final answer
    x = 196,702.83

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1.5x scale

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.