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Finding the Fourth Proportional to 372,777.30, 559,259.10 and 120,081.60

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Solution

The fourth proportional to 372,777.30, 559,259.10 and 120,081.60 is: 180,152.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,777.30 : 559,259.10 = 120,081.60 : x
  2. Step 2: Convert to fraction form
    372,777.30/559,259.10 = 120,081.60/x
  3. Step 3: Cross multiply
    372,777.30x = 559,259.10 × 120,081.60
  4. Step 4: Simplify right side
    372,777.30x = 67,156,727,542.56
  5. Step 5: Solve for x
    x = 67,156,727,542.56/372,777.30
  6. Step 6: Final answer
    x = 180,152.41

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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.