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Finding the Fourth Proportional to 52,054.50, 78,083.94 and 15,118.50

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Solution

The fourth proportional to 52,054.50, 78,083.94 and 15,118.50 is: 22,678.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,054.50 : 78,083.94 = 15,118.50 : x
  2. Step 2: Convert to fraction form
    52,054.50/78,083.94 = 15,118.50/x
  3. Step 3: Cross multiply
    52,054.50x = 78,083.94 × 15,118.50
  4. Step 4: Simplify right side
    52,054.50x = 1,180,512,046.89
  5. Step 5: Solve for x
    x = 1,180,512,046.89/52,054.50
  6. Step 6: Final answer
    x = 22,678.39

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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.