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Finding the Fourth Proportional to 292,164.56, 438,297.12 and 92,481.92

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Solution

The fourth proportional to 292,164.56, 438,297.12 and 92,481.92 is: 138,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,164.56 : 438,297.12 = 92,481.92 : x
  2. Step 2: Convert to fraction form
    292,164.56/438,297.12 = 92,481.92/x
  3. Step 3: Cross multiply
    292,164.56x = 438,297.12 × 92,481.92
  4. Step 4: Simplify right side
    292,164.56x = 40,534,559,188.07
  5. Step 5: Solve for x
    x = 40,534,559,188.07/292,164.56
  6. Step 6: Final answer
    x = 138,738.80

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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.