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Finding the Fourth Proportional to 90,349.72, 124,569.26 and 58,027.28

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Solution

The fourth proportional to 90,349.72, 124,569.26 and 58,027.28 is: 80,004.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,349.72 : 124,569.26 = 58,027.28 : x
  2. Step 2: Convert to fraction form
    90,349.72/124,569.26 = 58,027.28/x
  3. Step 3: Cross multiply
    90,349.72x = 124,569.26 × 58,027.28
  4. Step 4: Simplify right side
    90,349.72x = 7,228,414,634.03
  5. Step 5: Solve for x
    x = 7,228,414,634.03/90,349.72
  6. Step 6: Final answer
    x = 80,004.84

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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.