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Finding the Fourth Proportional to 147,588.88, 203,610.60 and 102,902.80

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Solution

The fourth proportional to 147,588.88, 203,610.60 and 102,902.80 is: 141,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,588.88 : 203,610.60 = 102,902.80 : x
  2. Step 2: Convert to fraction form
    147,588.88/203,610.60 = 102,902.80/x
  3. Step 3: Cross multiply
    147,588.88x = 203,610.60 × 102,902.80
  4. Step 4: Simplify right side
    147,588.88x = 20,952,100,849.68
  5. Step 5: Solve for x
    x = 20,952,100,849.68/147,588.88
  6. Step 6: Final answer
    x = 141,962.60

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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.