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Finding the Fourth Proportional to 68,810.46, 103,190.93 and 23,819.59

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Solution

The fourth proportional to 68,810.46, 103,190.93 and 23,819.59 is: 35,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,810.46 : 103,190.93 = 23,819.59 : x
  2. Step 2: Convert to fraction form
    68,810.46/103,190.93 = 23,819.59/x
  3. Step 3: Cross multiply
    68,810.46x = 103,190.93 × 23,819.59
  4. Step 4: Simplify right side
    68,810.46x = 2,457,966,033.76
  5. Step 5: Solve for x
    x = 2,457,966,033.76/68,810.46
  6. Step 6: Final answer
    x = 35,720.82

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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.