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Finding the Fourth Proportional to 79,616.22, 109,872.99 and 43,808.82

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Solution

The fourth proportional to 79,616.22, 109,872.99 and 43,808.82 is: 60,457.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,616.22 : 109,872.99 = 43,808.82 : x
  2. Step 2: Convert to fraction form
    79,616.22/109,872.99 = 43,808.82/x
  3. Step 3: Cross multiply
    79,616.22x = 109,872.99 × 43,808.82
  4. Step 4: Simplify right side
    79,616.22x = 4,813,406,041.77
  5. Step 5: Solve for x
    x = 4,813,406,041.77/79,616.22
  6. Step 6: Final answer
    x = 60,457.61

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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.