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Finding the Fourth Proportional to 208,987.52, 287,747.24 and 184,433.20

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Solution

The fourth proportional to 208,987.52, 287,747.24 and 184,433.20 is: 253,939.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,987.52 : 287,747.24 = 184,433.20 : x
  2. Step 2: Convert to fraction form
    208,987.52/287,747.24 = 184,433.20/x
  3. Step 3: Cross multiply
    208,987.52x = 287,747.24 × 184,433.20
  4. Step 4: Simplify right side
    208,987.52x = 53,070,144,264.37
  5. Step 5: Solve for x
    x = 53,070,144,264.37/208,987.52
  6. Step 6: Final answer
    x = 253,939.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.