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Finding the Fourth Proportional to 72,650.56, 100,288.48 and 44,366.40

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Solution

The fourth proportional to 72,650.56, 100,288.48 and 44,366.40 is: 61,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,650.56 : 100,288.48 = 44,366.40 : x
  2. Step 2: Convert to fraction form
    72,650.56/100,288.48 = 44,366.40/x
  3. Step 3: Cross multiply
    72,650.56x = 100,288.48 × 44,366.40
  4. Step 4: Simplify right side
    72,650.56x = 4,449,438,819.07
  5. Step 5: Solve for x
    x = 4,449,438,819.07/72,650.56
  6. Step 6: Final answer
    x = 61,244.38

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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.