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Finding the Fourth Proportional to 76,869, 115,320.54 and 23,568.36

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Solution

The fourth proportional to 76,869, 115,320.54 and 23,568.36 is: 35,357.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,869 : 115,320.54 = 23,568.36 : x
  2. Step 2: Convert to fraction form
    76,869/115,320.54 = 23,568.36/x
  3. Step 3: Cross multiply
    76,869x = 115,320.54 × 23,568.36
  4. Step 4: Simplify right side
    76,869x = 2,717,916,002.11
  5. Step 5: Solve for x
    x = 2,717,916,002.11/76,869
  6. Step 6: Final answer
    x = 35,357.76

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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.