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Finding the Fourth Proportional to 173,109.75, 238,892.18 and 93,621.75

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Solution

The fourth proportional to 173,109.75, 238,892.18 and 93,621.75 is: 129,198.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,109.75 : 238,892.18 = 93,621.75 : x
  2. Step 2: Convert to fraction form
    173,109.75/238,892.18 = 93,621.75/x
  3. Step 3: Cross multiply
    173,109.75x = 238,892.18 × 93,621.75
  4. Step 4: Simplify right side
    173,109.75x = 22,365,503,952.92
  5. Step 5: Solve for x
    x = 22,365,503,952.92/173,109.75
  6. Step 6: Final answer
    x = 129,198.41

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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.