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Finding the Fourth Proportional to 217,900.76, 326,892.30 and 75,740.60

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Solution

The fourth proportional to 217,900.76, 326,892.30 and 75,740.60 is: 113,625.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,900.76 : 326,892.30 = 75,740.60 : x
  2. Step 2: Convert to fraction form
    217,900.76/326,892.30 = 75,740.60/x
  3. Step 3: Cross multiply
    217,900.76x = 326,892.30 × 75,740.60
  4. Step 4: Simplify right side
    217,900.76x = 24,759,018,937.38
  5. Step 5: Solve for x
    x = 24,759,018,937.38/217,900.76
  6. Step 6: Final answer
    x = 113,625.21

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1.5x scale

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.