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Finding the Fourth Proportional to 302,491.46, 453,631.28 and 89,202.74

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Solution

The fourth proportional to 302,491.46, 453,631.28 and 89,202.74 is: 133,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,491.46 : 453,631.28 = 89,202.74 : x
  2. Step 2: Convert to fraction form
    302,491.46/453,631.28 = 89,202.74/x
  3. Step 3: Cross multiply
    302,491.46x = 453,631.28 × 89,202.74
  4. Step 4: Simplify right side
    302,491.46x = 40,465,153,125.71
  5. Step 5: Solve for x
    x = 40,465,153,125.71/302,491.46
  6. Step 6: Final answer
    x = 133,772.88

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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.