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Finding the Fourth Proportional to 220,043.14, 330,048.31 and 70,299.25

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Solution

The fourth proportional to 220,043.14, 330,048.31 and 70,299.25 is: 105,443.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,043.14 : 330,048.31 = 70,299.25 : x
  2. Step 2: Convert to fraction form
    220,043.14/330,048.31 = 70,299.25/x
  3. Step 3: Cross multiply
    220,043.14x = 330,048.31 × 70,299.25
  4. Step 4: Simplify right side
    220,043.14x = 23,202,148,656.77
  5. Step 5: Solve for x
    x = 23,202,148,656.77/220,043.14
  6. Step 6: Final answer
    x = 105,443.64

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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.