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Finding the Fourth Proportional to 72,621.92, 100,229.16 and 44,343.92

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Solution

The fourth proportional to 72,621.92, 100,229.16 and 44,343.92 is: 61,201.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621.92 : 100,229.16 = 44,343.92 : x
  2. Step 2: Convert to fraction form
    72,621.92/100,229.16 = 44,343.92/x
  3. Step 3: Cross multiply
    72,621.92x = 100,229.16 × 44,343.92
  4. Step 4: Simplify right side
    72,621.92x = 4,444,553,852.71
  5. Step 5: Solve for x
    x = 4,444,553,852.71/72,621.92
  6. Step 6: Final answer
    x = 61,201.27

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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.