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Finding the Fourth Proportional to 354,410.22, 531,617.28 and 88,170.72

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Solution

The fourth proportional to 354,410.22, 531,617.28 and 88,170.72 is: 132,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,410.22 : 531,617.28 = 88,170.72 : x
  2. Step 2: Convert to fraction form
    354,410.22/531,617.28 = 88,170.72/x
  3. Step 3: Cross multiply
    354,410.22x = 531,617.28 × 88,170.72
  4. Step 4: Simplify right side
    354,410.22x = 46,873,078,342.04
  5. Step 5: Solve for x
    x = 46,873,078,342.04/354,410.22
  6. Step 6: Final answer
    x = 132,256.57

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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.