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Finding the Fourth Proportional to 64,327.58, 96,639.70 and 61,670.42

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Solution

The fourth proportional to 64,327.58, 96,639.70 and 61,670.42 is: 92,647.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,327.58 : 96,639.70 = 61,670.42 : x
  2. Step 2: Convert to fraction form
    64,327.58/96,639.70 = 61,670.42/x
  3. Step 3: Cross multiply
    64,327.58x = 96,639.70 × 61,670.42
  4. Step 4: Simplify right side
    64,327.58x = 5,959,810,887.67
  5. Step 5: Solve for x
    x = 5,959,810,887.67/64,327.58
  6. Step 6: Final answer
    x = 92,647.83

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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.