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Finding the Fourth Proportional to 104,097, 143,614.66 and 68,306.76

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Solution

The fourth proportional to 104,097, 143,614.66 and 68,306.76 is: 94,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,097 : 143,614.66 = 68,306.76 : x
  2. Step 2: Convert to fraction form
    104,097/143,614.66 = 68,306.76/x
  3. Step 3: Cross multiply
    104,097x = 143,614.66 × 68,306.76
  4. Step 4: Simplify right side
    104,097x = 9,809,852,113.10
  5. Step 5: Solve for x
    x = 9,809,852,113.10/104,097
  6. Step 6: Final answer
    x = 94,237.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.