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Finding the Fourth Proportional to 173,109.67, 259,661.79 and 88,821.18

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Solution

The fourth proportional to 173,109.67, 259,661.79 and 88,821.18 is: 133,230.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,109.67 : 259,661.79 = 88,821.18 : x
  2. Step 2: Convert to fraction form
    173,109.67/259,661.79 = 88,821.18/x
  3. Step 3: Cross multiply
    173,109.67x = 259,661.79 × 88,821.18
  4. Step 4: Simplify right side
    173,109.67x = 23,063,466,588.71
  5. Step 5: Solve for x
    x = 23,063,466,588.71/173,109.67
  6. Step 6: Final answer
    x = 133,230.38

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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.