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Finding the Fourth Proportional to 137,244.40, 205,866.60 and 115,593.10

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Solution

The fourth proportional to 137,244.40, 205,866.60 and 115,593.10 is: 173,389.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,244.40 : 205,866.60 = 115,593.10 : x
  2. Step 2: Convert to fraction form
    137,244.40/205,866.60 = 115,593.10/x
  3. Step 3: Cross multiply
    137,244.40x = 205,866.60 × 115,593.10
  4. Step 4: Simplify right side
    137,244.40x = 23,796,758,480.46
  5. Step 5: Solve for x
    x = 23,796,758,480.46/137,244.40
  6. Step 6: Final answer
    x = 173,389.65

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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.