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Finding the Fourth Proportional to 208,878.11, 313,329.35 and 59,105.87

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Solution

The fourth proportional to 208,878.11, 313,329.35 and 59,105.87 is: 88,662.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,878.11 : 313,329.35 = 59,105.87 : x
  2. Step 2: Convert to fraction form
    208,878.11/313,329.35 = 59,105.87/x
  3. Step 3: Cross multiply
    208,878.11x = 313,329.35 × 59,105.87
  4. Step 4: Simplify right side
    208,878.11x = 18,519,603,828.28
  5. Step 5: Solve for x
    x = 18,519,603,828.28/208,878.11
  6. Step 6: Final answer
    x = 88,662.25

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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.