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Finding the Fourth Proportional to 76,169.97, 105,112.89 and 44,338.19

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Solution

The fourth proportional to 76,169.97, 105,112.89 and 44,338.19 is: 61,185.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,169.97 : 105,112.89 = 44,338.19 : x
  2. Step 2: Convert to fraction form
    76,169.97/105,112.89 = 44,338.19/x
  3. Step 3: Cross multiply
    76,169.97x = 105,112.89 × 44,338.19
  4. Step 4: Simplify right side
    76,169.97x = 4,660,514,762.70
  5. Step 5: Solve for x
    x = 4,660,514,762.70/76,169.97
  6. Step 6: Final answer
    x = 61,185.72

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1.5x scale

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.