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Finding the Fourth Proportional to 159,551.92, 220,178.76 and 86,955.44

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Solution

The fourth proportional to 159,551.92, 220,178.76 and 86,955.44 is: 119,996.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,551.92 : 220,178.76 = 86,955.44 : x
  2. Step 2: Convert to fraction form
    159,551.92/220,178.76 = 86,955.44/x
  3. Step 3: Cross multiply
    159,551.92x = 220,178.76 × 86,955.44
  4. Step 4: Simplify right side
    159,551.92x = 19,145,740,954.45
  5. Step 5: Solve for x
    x = 19,145,740,954.45/159,551.92
  6. Step 6: Final answer
    x = 119,996.93

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1.5x scale

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.