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Finding the Fourth Proportional to 302,058.60, 453,153.78 and 91,713

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Solution

The fourth proportional to 302,058.60, 453,153.78 and 91,713 is: 137,589.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,058.60 : 453,153.78 = 91,713 : x
  2. Step 2: Convert to fraction form
    302,058.60/453,153.78 = 91,713/x
  3. Step 3: Cross multiply
    302,058.60x = 453,153.78 × 91,713
  4. Step 4: Simplify right side
    302,058.60x = 41,560,092,625.14
  5. Step 5: Solve for x
    x = 41,560,092,625.14/302,058.60
  6. Step 6: Final answer
    x = 137,589.50

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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.