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Finding the Fourth Proportional to 213,104.44, 319,673.94 and 70,944.58

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Solution

The fourth proportional to 213,104.44, 319,673.94 and 70,944.58 is: 106,422.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,104.44 : 319,673.94 = 70,944.58 : x
  2. Step 2: Convert to fraction form
    213,104.44/319,673.94 = 70,944.58/x
  3. Step 3: Cross multiply
    213,104.44x = 319,673.94 × 70,944.58
  4. Step 4: Simplify right side
    213,104.44x = 22,679,133,410.25
  5. Step 5: Solve for x
    x = 22,679,133,410.25/213,104.44
  6. Step 6: Final answer
    x = 106,422.62

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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.