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Finding the Fourth Proportional to 372,919.20, 559,573.20 and 162,578.40

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Solution

The fourth proportional to 372,919.20, 559,573.20 and 162,578.40 is: 243,952.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,919.20 : 559,573.20 = 162,578.40 : x
  2. Step 2: Convert to fraction form
    372,919.20/559,573.20 = 162,578.40/x
  3. Step 3: Cross multiply
    372,919.20x = 559,573.20 × 162,578.40
  4. Step 4: Simplify right side
    372,919.20x = 90,974,515,538.88
  5. Step 5: Solve for x
    x = 90,974,515,538.88/372,919.20
  6. Step 6: Final answer
    x = 243,952.35

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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.