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Finding the Fourth Proportional to 79,728.84, 110,024.40 and 43,922.16

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Solution

The fourth proportional to 79,728.84, 110,024.40 and 43,922.16 is: 60,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,728.84 : 110,024.40 = 43,922.16 : x
  2. Step 2: Convert to fraction form
    79,728.84/110,024.40 = 43,922.16/x
  3. Step 3: Cross multiply
    79,728.84x = 110,024.40 × 43,922.16
  4. Step 4: Simplify right side
    79,728.84x = 4,832,509,300.70
  5. Step 5: Solve for x
    x = 4,832,509,300.70/79,728.84
  6. Step 6: Final answer
    x = 60,611.81

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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.