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Finding the Fourth Proportional to 251,107.92, 346,531.47 and 136,387.66

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Solution

The fourth proportional to 251,107.92, 346,531.47 and 136,387.66 is: 188,216.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,107.92 : 346,531.47 = 136,387.66 : x
  2. Step 2: Convert to fraction form
    251,107.92/346,531.47 = 136,387.66/x
  3. Step 3: Cross multiply
    251,107.92x = 346,531.47 × 136,387.66
  4. Step 4: Simplify right side
    251,107.92x = 47,262,616,309.66
  5. Step 5: Solve for x
    x = 47,262,616,309.66/251,107.92
  6. Step 6: Final answer
    x = 188,216.35

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1.5x scale

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.