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Finding the Fourth Proportional to 372,233.80, 558,177.90 and 161,763.40

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Solution

The fourth proportional to 372,233.80, 558,177.90 and 161,763.40 is: 242,570.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,233.80 : 558,177.90 = 161,763.40 : x
  2. Step 2: Convert to fraction form
    372,233.80/558,177.90 = 161,763.40/x
  3. Step 3: Cross multiply
    372,233.80x = 558,177.90 × 161,763.40
  4. Step 4: Simplify right side
    372,233.80x = 90,292,754,908.86
  5. Step 5: Solve for x
    x = 90,292,754,908.86/372,233.80
  6. Step 6: Final answer
    x = 242,570.01

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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.