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Finding the Fourth Proportional to 79,616.06, 109,867.90 and 43,806.10

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Solution

The fourth proportional to 79,616.06, 109,867.90 and 43,806.10 is: 60,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,616.06 : 109,867.90 = 43,806.10 : x
  2. Step 2: Convert to fraction form
    79,616.06/109,867.90 = 43,806.10/x
  3. Step 3: Cross multiply
    79,616.06x = 109,867.90 × 43,806.10
  4. Step 4: Simplify right side
    79,616.06x = 4,812,884,214.19
  5. Step 5: Solve for x
    x = 4,812,884,214.19/79,616.06
  6. Step 6: Final answer
    x = 60,451.17

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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.