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Finding the Fourth Proportional to 64,358.64, 96,537.96 and 42,311.52

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Solution

The fourth proportional to 64,358.64, 96,537.96 and 42,311.52 is: 63,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,358.64 : 96,537.96 = 42,311.52 : x
  2. Step 2: Convert to fraction form
    64,358.64/96,537.96 = 42,311.52/x
  3. Step 3: Cross multiply
    64,358.64x = 96,537.96 × 42,311.52
  4. Step 4: Simplify right side
    64,358.64x = 4,084,667,825.30
  5. Step 5: Solve for x
    x = 4,084,667,825.30/64,358.64
  6. Step 6: Final answer
    x = 63,467.28

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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.