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Finding the Fourth Proportional to 79,961.58, 119,755.80 and 63,209.16

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Solution

The fourth proportional to 79,961.58, 119,755.80 and 63,209.16 is: 94,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,961.58 : 119,755.80 = 63,209.16 : x
  2. Step 2: Convert to fraction form
    79,961.58/119,755.80 = 63,209.16/x
  3. Step 3: Cross multiply
    79,961.58x = 119,755.80 × 63,209.16
  4. Step 4: Simplify right side
    79,961.58x = 7,569,663,523.13
  5. Step 5: Solve for x
    x = 7,569,663,523.13/79,961.58
  6. Step 6: Final answer
    x = 94,666.26

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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.