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Finding the Fourth Proportional to 77,141.75, 106,412.77 and 44,872.73

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Solution

The fourth proportional to 77,141.75, 106,412.77 and 44,872.73 is: 61,899.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,141.75 : 106,412.77 = 44,872.73 : x
  2. Step 2: Convert to fraction form
    77,141.75/106,412.77 = 44,872.73/x
  3. Step 3: Cross multiply
    77,141.75x = 106,412.77 × 44,872.73
  4. Step 4: Simplify right side
    77,141.75x = 4,775,031,496.76
  5. Step 5: Solve for x
    x = 4,775,031,496.76/77,141.75
  6. Step 6: Final answer
    x = 61,899.45

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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.