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Finding the Fourth Proportional to 72,954.74, 100,679.09 and 41,123.63

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Solution

The fourth proportional to 72,954.74, 100,679.09 and 41,123.63 is: 56,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,954.74 : 100,679.09 = 41,123.63 : x
  2. Step 2: Convert to fraction form
    72,954.74/100,679.09 = 41,123.63/x
  3. Step 3: Cross multiply
    72,954.74x = 100,679.09 × 41,123.63
  4. Step 4: Simplify right side
    72,954.74x = 4,140,289,691.98
  5. Step 5: Solve for x
    x = 4,140,289,691.98/72,954.74
  6. Step 6: Final answer
    x = 56,751.48

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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.