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Finding the Fourth Proportional to 64,446.45, 96,621.08 and 42,265.41

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Solution

The fourth proportional to 64,446.45, 96,621.08 and 42,265.41 is: 63,366.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,446.45 : 96,621.08 = 42,265.41 : x
  2. Step 2: Convert to fraction form
    64,446.45/96,621.08 = 42,265.41/x
  3. Step 3: Cross multiply
    64,446.45x = 96,621.08 × 42,265.41
  4. Step 4: Simplify right side
    64,446.45x = 4,083,729,349.52
  5. Step 5: Solve for x
    x = 4,083,729,349.52/64,446.45
  6. Step 6: Final answer
    x = 63,366.24

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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.