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Finding the Fourth Proportional to 217,410.30, 326,115.45 and 92,994.30

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Solution

The fourth proportional to 217,410.30, 326,115.45 and 92,994.30 is: 139,491.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,410.30 : 326,115.45 = 92,994.30 : x
  2. Step 2: Convert to fraction form
    217,410.30/326,115.45 = 92,994.30/x
  3. Step 3: Cross multiply
    217,410.30x = 326,115.45 × 92,994.30
  4. Step 4: Simplify right side
    217,410.30x = 30,326,877,991.94
  5. Step 5: Solve for x
    x = 30,326,877,991.94/217,410.30
  6. Step 6: Final answer
    x = 139,491.45

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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.