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Finding the Fourth Proportional to 78,040.73, 107,696.57 and 44,050.65

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Solution

The fourth proportional to 78,040.73, 107,696.57 and 44,050.65 is: 60,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,040.73 : 107,696.57 = 44,050.65 : x
  2. Step 2: Convert to fraction form
    78,040.73/107,696.57 = 44,050.65/x
  3. Step 3: Cross multiply
    78,040.73x = 107,696.57 × 44,050.65
  4. Step 4: Simplify right side
    78,040.73x = 4,744,103,911.27
  5. Step 5: Solve for x
    x = 4,744,103,911.27/78,040.73
  6. Step 6: Final answer
    x = 60,790.10

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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.