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Finding the Fourth Proportional to 80,678.84, 111,334.84 and 43,884.11

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Solution

The fourth proportional to 80,678.84, 111,334.84 and 43,884.11 is: 60,559.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,678.84 : 111,334.84 = 43,884.11 : x
  2. Step 2: Convert to fraction form
    80,678.84/111,334.84 = 43,884.11/x
  3. Step 3: Cross multiply
    80,678.84x = 111,334.84 × 43,884.11
  4. Step 4: Simplify right side
    80,678.84x = 4,885,829,699.01
  5. Step 5: Solve for x
    x = 4,885,829,699.01/80,678.84
  6. Step 6: Final answer
    x = 60,559.00

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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.