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Finding the Fourth Proportional to 64,379, 96,455.90 and 44,670.08

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Solution

The fourth proportional to 64,379, 96,455.90 and 44,670.08 is: 66,926.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,379 : 96,455.90 = 44,670.08 : x
  2. Step 2: Convert to fraction form
    64,379/96,455.90 = 44,670.08/x
  3. Step 3: Cross multiply
    64,379x = 96,455.90 × 44,670.08
  4. Step 4: Simplify right side
    64,379x = 4,308,692,546.12
  5. Step 5: Solve for x
    x = 4,308,692,546.12/64,379
  6. Step 6: Final answer
    x = 66,926.99

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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.