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Finding the Fourth Proportional to 68,366.89, 94,346.12 and 38,151.89

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Solution

The fourth proportional to 68,366.89, 94,346.12 and 38,151.89 is: 52,649.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,366.89 : 94,346.12 = 38,151.89 : x
  2. Step 2: Convert to fraction form
    68,366.89/94,346.12 = 38,151.89/x
  3. Step 3: Cross multiply
    68,366.89x = 94,346.12 × 38,151.89
  4. Step 4: Simplify right side
    68,366.89x = 3,599,482,792.17
  5. Step 5: Solve for x
    x = 3,599,482,792.17/68,366.89
  6. Step 6: Final answer
    x = 52,649.50

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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.