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Finding the Fourth Proportional to 68,709.62, 94,819.16 and 38,495.14

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Solution

The fourth proportional to 68,709.62, 94,819.16 and 38,495.14 is: 53,123.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,709.62 : 94,819.16 = 38,495.14 : x
  2. Step 2: Convert to fraction form
    68,709.62/94,819.16 = 38,495.14/x
  3. Step 3: Cross multiply
    68,709.62x = 94,819.16 × 38,495.14
  4. Step 4: Simplify right side
    68,709.62x = 3,650,076,698.07
  5. Step 5: Solve for x
    x = 3,650,076,698.07/68,709.62
  6. Step 6: Final answer
    x = 53,123.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.