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Finding the Fourth Proportional to 251,054.34, 346,302.84 and 149,012.56

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Solution

The fourth proportional to 251,054.34, 346,302.84 and 149,012.56 is: 205,547.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,054.34 : 346,302.84 = 149,012.56 : x
  2. Step 2: Convert to fraction form
    251,054.34/346,302.84 = 149,012.56/x
  3. Step 3: Cross multiply
    251,054.34x = 346,302.84 × 149,012.56
  4. Step 4: Simplify right side
    251,054.34x = 51,603,472,723.67
  5. Step 5: Solve for x
    x = 51,603,472,723.67/251,054.34
  6. Step 6: Final answer
    x = 205,547.03

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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.