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Finding the Fourth Proportional to 89,228.82, 133,664.78 and 53,670.50

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Solution

The fourth proportional to 89,228.82, 133,664.78 and 53,670.50 is: 80,398.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,228.82 : 133,664.78 = 53,670.50 : x
  2. Step 2: Convert to fraction form
    89,228.82/133,664.78 = 53,670.50/x
  3. Step 3: Cross multiply
    89,228.82x = 133,664.78 × 53,670.50
  4. Step 4: Simplify right side
    89,228.82x = 7,173,855,306.64
  5. Step 5: Solve for x
    x = 7,173,855,306.64/89,228.82
  6. Step 6: Final answer
    x = 80,398.42

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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.