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Finding the Fourth Proportional to 302,503.82, 453,649.96 and 89,215.16

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Solution

The fourth proportional to 302,503.82, 453,649.96 and 89,215.16 is: 133,791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,503.82 : 453,649.96 = 89,215.16 : x
  2. Step 2: Convert to fraction form
    302,503.82/453,649.96 = 89,215.16/x
  3. Step 3: Cross multiply
    302,503.82x = 453,649.96 × 89,215.16
  4. Step 4: Simplify right side
    302,503.82x = 40,472,453,319.32
  5. Step 5: Solve for x
    x = 40,472,453,319.32/302,503.82
  6. Step 6: Final answer
    x = 133,791.54

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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.