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Finding the Fourth Proportional to 159,552.91, 220,220.54 and 99,169.16

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Solution

The fourth proportional to 159,552.91, 220,220.54 and 99,169.16 is: 136,876.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,552.91 : 220,220.54 = 99,169.16 : x
  2. Step 2: Convert to fraction form
    159,552.91/220,220.54 = 99,169.16/x
  3. Step 3: Cross multiply
    159,552.91x = 220,220.54 × 99,169.16
  4. Step 4: Simplify right side
    159,552.91x = 21,839,085,168.07
  5. Step 5: Solve for x
    x = 21,839,085,168.07/159,552.91
  6. Step 6: Final answer
    x = 136,876.76

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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.