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Finding the Fourth Proportional to 70,943.40, 106,415.10 and 41,394.60

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Solution

The fourth proportional to 70,943.40, 106,415.10 and 41,394.60 is: 62,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,943.40 : 106,415.10 = 41,394.60 : x
  2. Step 2: Convert to fraction form
    70,943.40/106,415.10 = 41,394.60/x
  3. Step 3: Cross multiply
    70,943.40x = 106,415.10 × 41,394.60
  4. Step 4: Simplify right side
    70,943.40x = 4,405,010,498.46
  5. Step 5: Solve for x
    x = 4,405,010,498.46/70,943.40
  6. Step 6: Final answer
    x = 62,091.90

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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.