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Finding the Fourth Proportional to 115,509, 173,332.62 and 49,845

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Solution

The fourth proportional to 115,509, 173,332.62 and 49,845 is: 74,797.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,509 : 173,332.62 = 49,845 : x
  2. Step 2: Convert to fraction form
    115,509/173,332.62 = 49,845/x
  3. Step 3: Cross multiply
    115,509x = 173,332.62 × 49,845
  4. Step 4: Simplify right side
    115,509x = 8,639,764,443.90
  5. Step 5: Solve for x
    x = 8,639,764,443.90/115,509
  6. Step 6: Final answer
    x = 74,797.33

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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.