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Finding the Fourth Proportional to 268,588.60, 370,661.22 and 147,739.24

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Solution

The fourth proportional to 268,588.60, 370,661.22 and 147,739.24 is: 203,885.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,588.60 : 370,661.22 = 147,739.24 : x
  2. Step 2: Convert to fraction form
    268,588.60/370,661.22 = 147,739.24/x
  3. Step 3: Cross multiply
    268,588.60x = 370,661.22 × 147,739.24
  4. Step 4: Simplify right side
    268,588.60x = 54,761,206,940.27
  5. Step 5: Solve for x
    x = 54,761,206,940.27/268,588.60
  6. Step 6: Final answer
    x = 203,885.08

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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.