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Finding the Fourth Proportional to 137,746.60, 206,231.10 and 133,858.60

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Solution

The fourth proportional to 137,746.60, 206,231.10 and 133,858.60 is: 200,410.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,746.60 : 206,231.10 = 133,858.60 : x
  2. Step 2: Convert to fraction form
    137,746.60/206,231.10 = 133,858.60/x
  3. Step 3: Cross multiply
    137,746.60x = 206,231.10 × 133,858.60
  4. Step 4: Simplify right side
    137,746.60x = 27,605,806,322.46
  5. Step 5: Solve for x
    x = 27,605,806,322.46/137,746.60
  6. Step 6: Final answer
    x = 200,410.07

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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.