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Finding the Fourth Proportional to 251,009.99, 346,396.77 and 136,290.01

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Solution

The fourth proportional to 251,009.99, 346,396.77 and 136,290.01 is: 188,081.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,009.99 : 346,396.77 = 136,290.01 : x
  2. Step 2: Convert to fraction form
    251,009.99/346,396.77 = 136,290.01/x
  3. Step 3: Cross multiply
    251,009.99x = 346,396.77 × 136,290.01
  4. Step 4: Simplify right side
    251,009.99x = 47,210,419,247.27
  5. Step 5: Solve for x
    x = 47,210,419,247.27/251,009.99
  6. Step 6: Final answer
    x = 188,081.83

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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.