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Finding the Fourth Proportional to 251,258.77, 346,739.27 and 136,537.39

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Solution

The fourth proportional to 251,258.77, 346,739.27 and 136,537.39 is: 188,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,258.77 : 346,739.27 = 136,537.39 : x
  2. Step 2: Convert to fraction form
    251,258.77/346,739.27 = 136,537.39/x
  3. Step 3: Cross multiply
    251,258.77x = 346,739.27 × 136,537.39
  4. Step 4: Simplify right side
    251,258.77x = 47,342,872,519.92
  5. Step 5: Solve for x
    x = 47,342,872,519.92/251,258.77
  6. Step 6: Final answer
    x = 188,422.77

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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.