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Finding the Fourth Proportional to 302,076.68, 453,085.72 and 91,716.44

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Solution

The fourth proportional to 302,076.68, 453,085.72 and 91,716.44 is: 137,565.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,076.68 : 453,085.72 = 91,716.44 : x
  2. Step 2: Convert to fraction form
    302,076.68/453,085.72 = 91,716.44/x
  3. Step 3: Cross multiply
    302,076.68x = 453,085.72 × 91,716.44
  4. Step 4: Simplify right side
    302,076.68x = 41,555,409,253.24
  5. Step 5: Solve for x
    x = 41,555,409,253.24/302,076.68
  6. Step 6: Final answer
    x = 137,565.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.