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Finding the Fourth Proportional to 372,132.80, 558,026.40 and 161,662.40

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Solution

The fourth proportional to 372,132.80, 558,026.40 and 161,662.40 is: 242,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,132.80 : 558,026.40 = 161,662.40 : x
  2. Step 2: Convert to fraction form
    372,132.80/558,026.40 = 161,662.40/x
  3. Step 3: Cross multiply
    372,132.80x = 558,026.40 × 161,662.40
  4. Step 4: Simplify right side
    372,132.80x = 90,211,887,087.36
  5. Step 5: Solve for x
    x = 90,211,887,087.36/372,132.80
  6. Step 6: Final answer
    x = 242,418.53

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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.