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Finding the Fourth Proportional to 64,425.34, 88,880.72 and 43,211.44

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Solution

The fourth proportional to 64,425.34, 88,880.72 and 43,211.44 is: 59,614.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,425.34 : 88,880.72 = 43,211.44 : x
  2. Step 2: Convert to fraction form
    64,425.34/88,880.72 = 43,211.44/x
  3. Step 3: Cross multiply
    64,425.34x = 88,880.72 × 43,211.44
  4. Step 4: Simplify right side
    64,425.34x = 3,840,663,899.44
  5. Step 5: Solve for x
    x = 3,840,663,899.44/64,425.34
  6. Step 6: Final answer
    x = 59,614.18

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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.