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Finding the Fourth Proportional to 302,195.70, 453,349.60 and 99,805.82

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Solution

The fourth proportional to 302,195.70, 453,349.60 and 99,805.82 is: 149,727.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,195.70 : 453,349.60 = 99,805.82 : x
  2. Step 2: Convert to fraction form
    302,195.70/453,349.60 = 99,805.82/x
  3. Step 3: Cross multiply
    302,195.70x = 453,349.60 × 99,805.82
  4. Step 4: Simplify right side
    302,195.70x = 45,246,926,058.41
  5. Step 5: Solve for x
    x = 45,246,926,058.41/302,195.70
  6. Step 6: Final answer
    x = 149,727.23

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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.