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Finding the Fourth Proportional to 64,423.55, 96,531.45 and 34,855.31

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Solution

The fourth proportional to 64,423.55, 96,531.45 and 34,855.31 is: 52,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,423.55 : 96,531.45 = 34,855.31 : x
  2. Step 2: Convert to fraction form
    64,423.55/96,531.45 = 34,855.31/x
  3. Step 3: Cross multiply
    64,423.55x = 96,531.45 × 34,855.31
  4. Step 4: Simplify right side
    64,423.55x = 3,364,633,725.12
  5. Step 5: Solve for x
    x = 3,364,633,725.12/64,423.55
  6. Step 6: Final answer
    x = 52,226.76

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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.