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Finding the Fourth Proportional to 172,360.67, 258,783.12 and 88,181.19

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Solution

The fourth proportional to 172,360.67, 258,783.12 and 88,181.19 is: 132,395.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,360.67 : 258,783.12 = 88,181.19 : x
  2. Step 2: Convert to fraction form
    172,360.67/258,783.12 = 88,181.19/x
  3. Step 3: Cross multiply
    172,360.67x = 258,783.12 × 88,181.19
  4. Step 4: Simplify right side
    172,360.67x = 22,819,803,473.51
  5. Step 5: Solve for x
    x = 22,819,803,473.51/172,360.67
  6. Step 6: Final answer
    x = 132,395.66

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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.