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Finding the Fourth Proportional to 89,317, 133,935.36 and 64,252

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Solution

The fourth proportional to 89,317, 133,935.36 and 64,252 is: 96,349.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,317 : 133,935.36 = 64,252 : x
  2. Step 2: Convert to fraction form
    89,317/133,935.36 = 64,252/x
  3. Step 3: Cross multiply
    89,317x = 133,935.36 × 64,252
  4. Step 4: Simplify right side
    89,317x = 8,605,614,750.72
  5. Step 5: Solve for x
    x = 8,605,614,750.72/89,317
  6. Step 6: Final answer
    x = 96,349.12

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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.