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Finding the Fourth Proportional to 158,285.52, 218,433.24 and 86,664.24

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Solution

The fourth proportional to 158,285.52, 218,433.24 and 86,664.24 is: 119,596.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,285.52 : 218,433.24 = 86,664.24 : x
  2. Step 2: Convert to fraction form
    158,285.52/218,433.24 = 86,664.24/x
  3. Step 3: Cross multiply
    158,285.52x = 218,433.24 × 86,664.24
  4. Step 4: Simplify right side
    158,285.52x = 18,930,350,735.34
  5. Step 5: Solve for x
    x = 18,930,350,735.34/158,285.52
  6. Step 6: Final answer
    x = 119,596.23

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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.