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Finding the Fourth Proportional to 252,920.32, 349,026.56 and 139,741.44

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Solution

The fourth proportional to 252,920.32, 349,026.56 and 139,741.44 is: 192,841.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,920.32 : 349,026.56 = 139,741.44 : x
  2. Step 2: Convert to fraction form
    252,920.32/349,026.56 = 139,741.44/x
  3. Step 3: Cross multiply
    252,920.32x = 349,026.56 × 139,741.44
  4. Step 4: Simplify right side
    252,920.32x = 48,773,474,092.65
  5. Step 5: Solve for x
    x = 48,773,474,092.65/252,920.32
  6. Step 6: Final answer
    x = 192,841.26

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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.