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Finding the Fourth Proportional to 45,670.71, 68,441.86 and 34,418.59

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Solution

The fourth proportional to 45,670.71, 68,441.86 and 34,418.59 is: 51,579.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,670.71 : 68,441.86 = 34,418.59 : x
  2. Step 2: Convert to fraction form
    45,670.71/68,441.86 = 34,418.59/x
  3. Step 3: Cross multiply
    45,670.71x = 68,441.86 × 34,418.59
  4. Step 4: Simplify right side
    45,670.71x = 2,355,672,318.18
  5. Step 5: Solve for x
    x = 2,355,672,318.18/45,670.71
  6. Step 6: Final answer
    x = 51,579.50

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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.