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Finding the Fourth Proportional to 172,272.67, 258,461.39 and 88,091.93

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Solution

The fourth proportional to 172,272.67, 258,461.39 and 88,091.93 is: 132,164.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,272.67 : 258,461.39 = 88,091.93 : x
  2. Step 2: Convert to fraction form
    172,272.67/258,461.39 = 88,091.93/x
  3. Step 3: Cross multiply
    172,272.67x = 258,461.39 × 88,091.93
  4. Step 4: Simplify right side
    172,272.67x = 22,768,363,541.97
  5. Step 5: Solve for x
    x = 22,768,363,541.97/172,272.67
  6. Step 6: Final answer
    x = 132,164.69

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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.