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Finding the Fourth Proportional to 159,998.80, 220,729.96 and 112,283.32

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Solution

The fourth proportional to 159,998.80, 220,729.96 and 112,283.32 is: 154,902.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,998.80 : 220,729.96 = 112,283.32 : x
  2. Step 2: Convert to fraction form
    159,998.80/220,729.96 = 112,283.32/x
  3. Step 3: Cross multiply
    159,998.80x = 220,729.96 × 112,283.32
  4. Step 4: Simplify right side
    159,998.80x = 24,784,292,732.27
  5. Step 5: Solve for x
    x = 24,784,292,732.27/159,998.80
  6. Step 6: Final answer
    x = 154,902.99

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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.