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Finding the Fourth Proportional to 64,463.41, 89,049.21 and 61,310.60

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Solution

The fourth proportional to 64,463.41, 89,049.21 and 61,310.60 is: 84,693.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,463.41 : 89,049.21 = 61,310.60 : x
  2. Step 2: Convert to fraction form
    64,463.41/89,049.21 = 61,310.60/x
  3. Step 3: Cross multiply
    64,463.41x = 89,049.21 × 61,310.60
  4. Step 4: Simplify right side
    64,463.41x = 5,459,660,153.40
  5. Step 5: Solve for x
    x = 5,459,660,153.40/64,463.41
  6. Step 6: Final answer
    x = 84,693.94

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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.