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Finding the Fourth Proportional to 158,092.84, 218,247.78 and 122,201.80

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Solution

The fourth proportional to 158,092.84, 218,247.78 and 122,201.80 is: 168,700.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,092.84 : 218,247.78 = 122,201.80 : x
  2. Step 2: Convert to fraction form
    158,092.84/218,247.78 = 122,201.80/x
  3. Step 3: Cross multiply
    158,092.84x = 218,247.78 × 122,201.80
  4. Step 4: Simplify right side
    158,092.84x = 26,670,271,562.00
  5. Step 5: Solve for x
    x = 26,670,271,562.00/158,092.84
  6. Step 6: Final answer
    x = 168,700.06

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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.