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Finding the Fourth Proportional to 64,317.60, 96,624.64 and 61,660.48

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Solution

The fourth proportional to 64,317.60, 96,624.64 and 61,660.48 is: 92,632.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,317.60 : 96,624.64 = 61,660.48 : x
  2. Step 2: Convert to fraction form
    64,317.60/96,624.64 = 61,660.48/x
  3. Step 3: Cross multiply
    64,317.60x = 96,624.64 × 61,660.48
  4. Step 4: Simplify right side
    64,317.60x = 5,957,921,682.23
  5. Step 5: Solve for x
    x = 5,957,921,682.23/64,317.60
  6. Step 6: Final answer
    x = 92,632.84

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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.