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Finding the Fourth Proportional to 158,610.64, 218,862.44 and 90,632.02

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Solution

The fourth proportional to 158,610.64, 218,862.44 and 90,632.02 is: 125,060.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,610.64 : 218,862.44 = 90,632.02 : x
  2. Step 2: Convert to fraction form
    158,610.64/218,862.44 = 90,632.02/x
  3. Step 3: Cross multiply
    158,610.64x = 218,862.44 × 90,632.02
  4. Step 4: Simplify right side
    158,610.64x = 19,835,945,039.33
  5. Step 5: Solve for x
    x = 19,835,945,039.33/158,610.64
  6. Step 6: Final answer
    x = 125,060.62

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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.