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Finding the Fourth Proportional to 70,700.46, 106,045.20 and 41,099.40

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Solution

The fourth proportional to 70,700.46, 106,045.20 and 41,099.40 is: 61,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,700.46 : 106,045.20 = 41,099.40 : x
  2. Step 2: Convert to fraction form
    70,700.46/106,045.20 = 41,099.40/x
  3. Step 3: Cross multiply
    70,700.46x = 106,045.20 × 41,099.40
  4. Step 4: Simplify right side
    70,700.46x = 4,358,394,092.88
  5. Step 5: Solve for x
    x = 4,358,394,092.88/70,700.46
  6. Step 6: Final answer
    x = 61,645.91

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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.