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Finding the Fourth Proportional to 212,662.92, 319,036.32 and 60,861.42

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Solution

The fourth proportional to 212,662.92, 319,036.32 and 60,861.42 is: 91,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,662.92 : 319,036.32 = 60,861.42 : x
  2. Step 2: Convert to fraction form
    212,662.92/319,036.32 = 60,861.42/x
  3. Step 3: Cross multiply
    212,662.92x = 319,036.32 × 60,861.42
  4. Step 4: Simplify right side
    212,662.92x = 19,417,003,466.77
  5. Step 5: Solve for x
    x = 19,417,003,466.77/212,662.92
  6. Step 6: Final answer
    x = 91,304.13

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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.