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Finding the Fourth Proportional to 292,555.98, 438,789.12 and 92,850.48

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Solution

The fourth proportional to 292,555.98, 438,789.12 and 92,850.48 is: 139,261.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,555.98 : 438,789.12 = 92,850.48 : x
  2. Step 2: Convert to fraction form
    292,555.98/438,789.12 = 92,850.48/x
  3. Step 3: Cross multiply
    292,555.98x = 438,789.12 × 92,850.48
  4. Step 4: Simplify right side
    292,555.98x = 40,741,780,410.78
  5. Step 5: Solve for x
    x = 40,741,780,410.78/292,555.98
  6. Step 6: Final answer
    x = 139,261.49

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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.