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Finding the Fourth Proportional to 172,812.50, 238,481.25 and 93,324.50

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Solution

The fourth proportional to 172,812.50, 238,481.25 and 93,324.50 is: 128,787.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,812.50 : 238,481.25 = 93,324.50 : x
  2. Step 2: Convert to fraction form
    172,812.50/238,481.25 = 93,324.50/x
  3. Step 3: Cross multiply
    172,812.50x = 238,481.25 × 93,324.50
  4. Step 4: Simplify right side
    172,812.50x = 22,256,143,415.63
  5. Step 5: Solve for x
    x = 22,256,143,415.63/172,812.50
  6. Step 6: Final answer
    x = 128,787.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.