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Finding the Fourth Proportional to 157,471.20, 236,221.20 and 63,957.60

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Solution

The fourth proportional to 157,471.20, 236,221.20 and 63,957.60 is: 95,942.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,471.20 : 236,221.20 = 63,957.60 : x
  2. Step 2: Convert to fraction form
    157,471.20/236,221.20 = 63,957.60/x
  3. Step 3: Cross multiply
    157,471.20x = 236,221.20 × 63,957.60
  4. Step 4: Simplify right side
    157,471.20x = 15,108,141,021.12
  5. Step 5: Solve for x
    x = 15,108,141,021.12/157,471.20
  6. Step 6: Final answer
    x = 95,942.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.