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Finding the Fourth Proportional to 159,935.49, 220,712.49 and 88,313.94

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Solution

The fourth proportional to 159,935.49, 220,712.49 and 88,313.94 is: 121,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,935.49 : 220,712.49 = 88,313.94 : x
  2. Step 2: Convert to fraction form
    159,935.49/220,712.49 = 88,313.94/x
  3. Step 3: Cross multiply
    159,935.49x = 220,712.49 × 88,313.94
  4. Step 4: Simplify right side
    159,935.49x = 19,491,989,599.11
  5. Step 5: Solve for x
    x = 19,491,989,599.11/159,935.49
  6. Step 6: Final answer
    x = 121,874.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.