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Finding the Fourth Proportional to 64,704.53, 89,215.88 and 44,296.40

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Solution

The fourth proportional to 64,704.53, 89,215.88 and 44,296.40 is: 61,076.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,704.53 : 89,215.88 = 44,296.40 : x
  2. Step 2: Convert to fraction form
    64,704.53/89,215.88 = 44,296.40/x
  3. Step 3: Cross multiply
    64,704.53x = 89,215.88 × 44,296.40
  4. Step 4: Simplify right side
    64,704.53x = 3,951,941,639.27
  5. Step 5: Solve for x
    x = 3,951,941,639.27/64,704.53
  6. Step 6: Final answer
    x = 61,076.74

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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.