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Finding the Fourth Proportional to 64,322.58, 96,632.19 and 61,665.42

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Solution

The fourth proportional to 64,322.58, 96,632.19 and 61,665.42 is: 92,640.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,322.58 : 96,632.19 = 61,665.42 : x
  2. Step 2: Convert to fraction form
    64,322.58/96,632.19 = 61,665.42/x
  3. Step 3: Cross multiply
    64,322.58x = 96,632.19 × 61,665.42
  4. Step 4: Simplify right side
    64,322.58x = 5,958,864,581.87
  5. Step 5: Solve for x
    x = 5,958,864,581.87/64,322.58
  6. Step 6: Final answer
    x = 92,640.32

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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.