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Finding the Fourth Proportional to 79,937.71, 110,314.23 and 43,639.18

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Solution

The fourth proportional to 79,937.71, 110,314.23 and 43,639.18 is: 60,222.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,937.71 : 110,314.23 = 43,639.18 : x
  2. Step 2: Convert to fraction form
    79,937.71/110,314.23 = 43,639.18/x
  3. Step 3: Cross multiply
    79,937.71x = 110,314.23 × 43,639.18
  4. Step 4: Simplify right side
    79,937.71x = 4,814,022,539.53
  5. Step 5: Solve for x
    x = 4,814,022,539.53/79,937.71
  6. Step 6: Final answer
    x = 60,222.17

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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.