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Finding the Fourth Proportional to 252,574.21, 348,553.16 and 137,853.91

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Solution

The fourth proportional to 252,574.21, 348,553.16 and 137,853.91 is: 190,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,574.21 : 348,553.16 = 137,853.91 : x
  2. Step 2: Convert to fraction form
    252,574.21/348,553.16 = 137,853.91/x
  3. Step 3: Cross multiply
    252,574.21x = 348,553.16 × 137,853.91
  4. Step 4: Simplify right side
    252,574.21x = 48,049,415,948.86
  5. Step 5: Solve for x
    x = 48,049,415,948.86/252,574.21
  6. Step 6: Final answer
    x = 190,238.81

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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.