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Finding the Fourth Proportional to 247,817.10, 371,739.81 and 70,310.10

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Solution

The fourth proportional to 247,817.10, 371,739.81 and 70,310.10 is: 105,469.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,817.10 : 371,739.81 = 70,310.10 : x
  2. Step 2: Convert to fraction form
    247,817.10/371,739.81 = 70,310.10/x
  3. Step 3: Cross multiply
    247,817.10x = 371,739.81 × 70,310.10
  4. Step 4: Simplify right side
    247,817.10x = 26,137,063,215.08
  5. Step 5: Solve for x
    x = 26,137,063,215.08/247,817.10
  6. Step 6: Final answer
    x = 105,469.17

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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.