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Finding the Fourth Proportional to 79,642.44, 109,888.92 and 46,089

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Solution

The fourth proportional to 79,642.44, 109,888.92 and 46,089 is: 63,592.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,642.44 : 109,888.92 = 46,089 : x
  2. Step 2: Convert to fraction form
    79,642.44/109,888.92 = 46,089/x
  3. Step 3: Cross multiply
    79,642.44x = 109,888.92 × 46,089
  4. Step 4: Simplify right side
    79,642.44x = 5,064,670,433.88
  5. Step 5: Solve for x
    x = 5,064,670,433.88/79,642.44
  6. Step 6: Final answer
    x = 63,592.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.