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Finding the Fourth Proportional to 77,846.78, 107,429.20 and 44,314.94

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Solution

The fourth proportional to 77,846.78, 107,429.20 and 44,314.94 is: 61,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,846.78 : 107,429.20 = 44,314.94 : x
  2. Step 2: Convert to fraction form
    77,846.78/107,429.20 = 44,314.94/x
  3. Step 3: Cross multiply
    77,846.78x = 107,429.20 × 44,314.94
  4. Step 4: Simplify right side
    77,846.78x = 4,760,718,552.25
  5. Step 5: Solve for x
    x = 4,760,718,552.25/77,846.78
  6. Step 6: Final answer
    x = 61,154.98

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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.