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Finding the Fourth Proportional to 217,908.66, 326,881.80 and 60,137.10

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Solution

The fourth proportional to 217,908.66, 326,881.80 and 60,137.10 is: 90,210.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,908.66 : 326,881.80 = 60,137.10 : x
  2. Step 2: Convert to fraction form
    217,908.66/326,881.80 = 60,137.10/x
  3. Step 3: Cross multiply
    217,908.66x = 326,881.80 × 60,137.10
  4. Step 4: Simplify right side
    217,908.66x = 19,657,723,494.78
  5. Step 5: Solve for x
    x = 19,657,723,494.78/217,908.66
  6. Step 6: Final answer
    x = 90,210.84

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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.