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Finding the Fourth Proportional to 64,837.07, 89,505.03 and 45,732.41

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Solution

The fourth proportional to 64,837.07, 89,505.03 and 45,732.41 is: 63,131.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,837.07 : 89,505.03 = 45,732.41 : x
  2. Step 2: Convert to fraction form
    64,837.07/89,505.03 = 45,732.41/x
  3. Step 3: Cross multiply
    64,837.07x = 89,505.03 × 45,732.41
  4. Step 4: Simplify right side
    64,837.07x = 4,093,280,729.02
  5. Step 5: Solve for x
    x = 4,093,280,729.02/64,837.07
  6. Step 6: Final answer
    x = 63,131.80

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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.