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Finding the Fourth Proportional to 159,936.49, 220,713.87 and 88,314.94

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Solution

The fourth proportional to 159,936.49, 220,713.87 and 88,314.94 is: 121,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,936.49 : 220,713.87 = 88,314.94 : x
  2. Step 2: Convert to fraction form
    159,936.49/220,713.87 = 88,314.94/x
  3. Step 3: Cross multiply
    159,936.49x = 220,713.87 × 88,314.94
  4. Step 4: Simplify right side
    159,936.49x = 19,492,332,186.22
  5. Step 5: Solve for x
    x = 19,492,332,186.22/159,936.49
  6. Step 6: Final answer
    x = 121,875.45

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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.