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Finding the Fourth Proportional to 252,354.84, 348,249.78 and 139,184.88

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Solution

The fourth proportional to 252,354.84, 348,249.78 and 139,184.88 is: 192,075.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,354.84 : 348,249.78 = 139,184.88 : x
  2. Step 2: Convert to fraction form
    252,354.84/348,249.78 = 139,184.88/x
  3. Step 3: Cross multiply
    252,354.84x = 348,249.78 × 139,184.88
  4. Step 4: Simplify right side
    252,354.84x = 48,471,103,839.33
  5. Step 5: Solve for x
    x = 48,471,103,839.33/252,354.84
  6. Step 6: Final answer
    x = 192,075.19

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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.