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Finding the Fourth Proportional to 81,334.65, 112,241.79 and 45,524.65

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Solution

The fourth proportional to 81,334.65, 112,241.79 and 45,524.65 is: 62,824.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,334.65 : 112,241.79 = 45,524.65 : x
  2. Step 2: Convert to fraction form
    81,334.65/112,241.79 = 45,524.65/x
  3. Step 3: Cross multiply
    81,334.65x = 112,241.79 × 45,524.65
  4. Step 4: Simplify right side
    81,334.65x = 5,109,768,205.12
  5. Step 5: Solve for x
    x = 5,109,768,205.12/81,334.65
  6. Step 6: Final answer
    x = 62,824.00

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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.