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Finding the Fourth Proportional to 213,469.26, 319,539.59 and 134,417.41

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Solution

The fourth proportional to 213,469.26, 319,539.59 and 134,417.41 is: 201,207.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,469.26 : 319,539.59 = 134,417.41 : x
  2. Step 2: Convert to fraction form
    213,469.26/319,539.59 = 134,417.41/x
  3. Step 3: Cross multiply
    213,469.26x = 319,539.59 × 134,417.41
  4. Step 4: Simplify right side
    213,469.26x = 42,951,684,311.66
  5. Step 5: Solve for x
    x = 42,951,684,311.66/213,469.26
  6. Step 6: Final answer
    x = 201,207.82

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1.5x scale

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.