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Finding the Fourth Proportional to 77,576.57, 107,055.76 and 44,042.57

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Solution

The fourth proportional to 77,576.57, 107,055.76 and 44,042.57 is: 60,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,576.57 : 107,055.76 = 44,042.57 : x
  2. Step 2: Convert to fraction form
    77,576.57/107,055.76 = 44,042.57/x
  3. Step 3: Cross multiply
    77,576.57x = 107,055.76 × 44,042.57
  4. Step 4: Simplify right side
    77,576.57x = 4,715,010,268.42
  5. Step 5: Solve for x
    x = 4,715,010,268.42/77,576.57
  6. Step 6: Final answer
    x = 60,778.80

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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.