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Finding the Fourth Proportional to 208,838.83, 313,390.02 and 88,895.59

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Solution

The fourth proportional to 208,838.83, 313,390.02 and 88,895.59 is: 133,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,838.83 : 313,390.02 = 88,895.59 : x
  2. Step 2: Convert to fraction form
    208,838.83/313,390.02 = 88,895.59/x
  3. Step 3: Cross multiply
    208,838.83x = 313,390.02 × 88,895.59
  4. Step 4: Simplify right side
    208,838.83x = 27,858,990,728.01
  5. Step 5: Solve for x
    x = 27,858,990,728.01/208,838.83
  6. Step 6: Final answer
    x = 133,399.48

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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.