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Finding the Fourth Proportional to 252,687.62, 348,709.66 and 137,967.26

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Solution

The fourth proportional to 252,687.62, 348,709.66 and 137,967.26 is: 190,395.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,687.62 : 348,709.66 = 137,967.26 : x
  2. Step 2: Convert to fraction form
    252,687.62/348,709.66 = 137,967.26/x
  3. Step 3: Cross multiply
    252,687.62x = 348,709.66 × 137,967.26
  4. Step 4: Simplify right side
    252,687.62x = 48,110,514,237.27
  5. Step 5: Solve for x
    x = 48,110,514,237.27/252,687.62
  6. Step 6: Final answer
    x = 190,395.22

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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.