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Finding the Fourth Proportional to 208,939.66, 313,403.42 and 59,179.66

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Solution

The fourth proportional to 208,939.66, 313,403.42 and 59,179.66 is: 88,767.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,939.66 : 313,403.42 = 59,179.66 : x
  2. Step 2: Convert to fraction form
    208,939.66/313,403.42 = 59,179.66/x
  3. Step 3: Cross multiply
    208,939.66x = 313,403.42 × 59,179.66
  4. Step 4: Simplify right side
    208,939.66x = 18,547,107,838.44
  5. Step 5: Solve for x
    x = 18,547,107,838.44/208,939.66
  6. Step 6: Final answer
    x = 88,767.77

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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.