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Finding the Fourth Proportional to 73,716.59, 110,038.51 and 68,239.37

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Solution

The fourth proportional to 73,716.59, 110,038.51 and 68,239.37 is: 101,862.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,716.59 : 110,038.51 = 68,239.37 : x
  2. Step 2: Convert to fraction form
    73,716.59/110,038.51 = 68,239.37/x
  3. Step 3: Cross multiply
    73,716.59x = 110,038.51 × 68,239.37
  4. Step 4: Simplify right side
    73,716.59x = 7,508,958,598.14
  5. Step 5: Solve for x
    x = 7,508,958,598.14/73,716.59
  6. Step 6: Final answer
    x = 101,862.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.