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Finding the Fourth Proportional to 250,081.47, 345,112.44 and 136,904.22

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Solution

The fourth proportional to 250,081.47, 345,112.44 and 136,904.22 is: 188,927.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,081.47 : 345,112.44 = 136,904.22 : x
  2. Step 2: Convert to fraction form
    250,081.47/345,112.44 = 136,904.22/x
  3. Step 3: Cross multiply
    250,081.47x = 345,112.44 × 136,904.22
  4. Step 4: Simplify right side
    250,081.47x = 47,247,349,410.50
  5. Step 5: Solve for x
    x = 47,247,349,410.50/250,081.47
  6. Step 6: Final answer
    x = 188,927.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.