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Finding the Fourth Proportional to 250,085.38, 345,117.83 and 136,908.13

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Solution

The fourth proportional to 250,085.38, 345,117.83 and 136,908.13 is: 188,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,085.38 : 345,117.83 = 136,908.13 : x
  2. Step 2: Convert to fraction form
    250,085.38/345,117.83 = 136,908.13/x
  3. Step 3: Cross multiply
    250,085.38x = 345,117.83 × 136,908.13
  4. Step 4: Simplify right side
    250,085.38x = 47,249,435,187.62
  5. Step 5: Solve for x
    x = 47,249,435,187.62/250,085.38
  6. Step 6: Final answer
    x = 188,933.22

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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.