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Finding the Fourth Proportional to 539,885.52, 809,745.32 and 180,062.72

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Solution

The fourth proportional to 539,885.52, 809,745.32 and 180,062.72 is: 270,066.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,885.52 : 809,745.32 = 180,062.72 : x
  2. Step 2: Convert to fraction form
    539,885.52/809,745.32 = 180,062.72/x
  3. Step 3: Cross multiply
    539,885.52x = 809,745.32 × 180,062.72
  4. Step 4: Simplify right side
    539,885.52x = 145,804,944,826.47
  5. Step 5: Solve for x
    x = 145,804,944,826.47/539,885.52
  6. Step 6: Final answer
    x = 270,066.41

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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.