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Finding the Fourth Proportional to 172,816.75, 238,487.13 and 93,328.75

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Solution

The fourth proportional to 172,816.75, 238,487.13 and 93,328.75 is: 128,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,816.75 : 238,487.13 = 93,328.75 : x
  2. Step 2: Convert to fraction form
    172,816.75/238,487.13 = 93,328.75/x
  3. Step 3: Cross multiply
    172,816.75x = 238,487.13 × 93,328.75
  4. Step 4: Simplify right side
    172,816.75x = 22,257,705,733.99
  5. Step 5: Solve for x
    x = 22,257,705,733.99/172,816.75
  6. Step 6: Final answer
    x = 128,793.68

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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.