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Finding the Fourth Proportional to 251,064.82, 346,472.18 and 137,887.56

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Solution

The fourth proportional to 251,064.82, 346,472.18 and 137,887.56 is: 190,286.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,064.82 : 346,472.18 = 137,887.56 : x
  2. Step 2: Convert to fraction form
    251,064.82/346,472.18 = 137,887.56/x
  3. Step 3: Cross multiply
    251,064.82x = 346,472.18 × 137,887.56
  4. Step 4: Simplify right side
    251,064.82x = 47,774,203,508.08
  5. Step 5: Solve for x
    x = 47,774,203,508.08/251,064.82
  6. Step 6: Final answer
    x = 190,286.33

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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.