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Finding the Fourth Proportional to 302,274.60, 453,428.12 and 91,896.56

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Solution

The fourth proportional to 302,274.60, 453,428.12 and 91,896.56 is: 137,849.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,274.60 : 453,428.12 = 91,896.56 : x
  2. Step 2: Convert to fraction form
    302,274.60/453,428.12 = 91,896.56/x
  3. Step 3: Cross multiply
    302,274.60x = 453,428.12 × 91,896.56
  4. Step 4: Simplify right side
    302,274.60x = 41,668,484,435.27
  5. Step 5: Solve for x
    x = 41,668,484,435.27/302,274.60
  6. Step 6: Final answer
    x = 137,849.77

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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.