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Finding the Fourth Proportional to 172,372.22, 258,333.72 and 88,061.32

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Solution

The fourth proportional to 172,372.22, 258,333.72 and 88,061.32 is: 131,977.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,372.22 : 258,333.72 = 88,061.32 : x
  2. Step 2: Convert to fraction form
    172,372.22/258,333.72 = 88,061.32/x
  3. Step 3: Cross multiply
    172,372.22x = 258,333.72 × 88,061.32
  4. Step 4: Simplify right side
    172,372.22x = 22,749,208,383.71
  5. Step 5: Solve for x
    x = 22,749,208,383.71/172,372.22
  6. Step 6: Final answer
    x = 131,977.23

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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.