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Finding the Fourth Proportional to 213,244.58, 319,759.92 and 71,039.87

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Solution

The fourth proportional to 213,244.58, 319,759.92 and 71,039.87 is: 106,524.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,244.58 : 319,759.92 = 71,039.87 : x
  2. Step 2: Convert to fraction form
    213,244.58/319,759.92 = 71,039.87/x
  3. Step 3: Cross multiply
    213,244.58x = 319,759.92 × 71,039.87
  4. Step 4: Simplify right side
    213,244.58x = 22,715,701,549.21
  5. Step 5: Solve for x
    x = 22,715,701,549.21/213,244.58
  6. Step 6: Final answer
    x = 106,524.17

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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.