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Finding the Fourth Proportional to 292,354.56, 438,586.49 and 92,621.32

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Solution

The fourth proportional to 292,354.56, 438,586.49 and 92,621.32 is: 138,949.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,354.56 : 438,586.49 = 92,621.32 : x
  2. Step 2: Convert to fraction form
    292,354.56/438,586.49 = 92,621.32/x
  3. Step 3: Cross multiply
    292,354.56x = 438,586.49 × 92,621.32
  4. Step 4: Simplify right side
    292,354.56x = 40,622,458,773.05
  5. Step 5: Solve for x
    x = 40,622,458,773.05/292,354.56
  6. Step 6: Final answer
    x = 138,949.29

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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.