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Finding the Fourth Proportional to 220,098.58, 330,171 and 70,303.66

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Solution

The fourth proportional to 220,098.58, 330,171 and 70,303.66 is: 105,462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,098.58 : 330,171 = 70,303.66 : x
  2. Step 2: Convert to fraction form
    220,098.58/330,171 = 70,303.66/x
  3. Step 3: Cross multiply
    220,098.58x = 330,171 × 70,303.66
  4. Step 4: Simplify right side
    220,098.58x = 23,212,229,725.86
  5. Step 5: Solve for x
    x = 23,212,229,725.86/220,098.58
  6. Step 6: Final answer
    x = 105,462.88

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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.