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Finding the Fourth Proportional to 89,228.76, 133,664.68 and 53,670.44

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Solution

The fourth proportional to 89,228.76, 133,664.68 and 53,670.44 is: 80,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,228.76 : 133,664.68 = 53,670.44 : x
  2. Step 2: Convert to fraction form
    89,228.76/133,664.68 = 53,670.44/x
  3. Step 3: Cross multiply
    89,228.76x = 133,664.68 × 53,670.44
  4. Step 4: Simplify right side
    89,228.76x = 7,173,842,188.06
  5. Step 5: Solve for x
    x = 7,173,842,188.06/89,228.76
  6. Step 6: Final answer
    x = 80,398.32

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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.