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Finding the Fourth Proportional to 172,976.48, 259,386.76 and 73,085.26

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Solution

The fourth proportional to 172,976.48, 259,386.76 and 73,085.26 is: 109,594.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,976.48 : 259,386.76 = 73,085.26 : x
  2. Step 2: Convert to fraction form
    172,976.48/259,386.76 = 73,085.26/x
  3. Step 3: Cross multiply
    172,976.48x = 259,386.76 × 73,085.26
  4. Step 4: Simplify right side
    172,976.48x = 18,957,348,795.16
  5. Step 5: Solve for x
    x = 18,957,348,795.16/172,976.48
  6. Step 6: Final answer
    x = 109,594.95

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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.