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Finding the Fourth Proportional to 208,452.48, 312,678.72 and 58,692.78

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Solution

The fourth proportional to 208,452.48, 312,678.72 and 58,692.78 is: 88,039.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,452.48 : 312,678.72 = 58,692.78 : x
  2. Step 2: Convert to fraction form
    208,452.48/312,678.72 = 58,692.78/x
  3. Step 3: Cross multiply
    208,452.48x = 312,678.72 × 58,692.78
  4. Step 4: Simplify right side
    208,452.48x = 18,351,983,323.64
  5. Step 5: Solve for x
    x = 18,351,983,323.64/208,452.48
  6. Step 6: Final answer
    x = 88,039.17

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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.