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Finding the Fourth Proportional to 252,653.94, 348,641.49 and 143,729.29

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Solution

The fourth proportional to 252,653.94, 348,641.49 and 143,729.29 is: 198,334.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,653.94 : 348,641.49 = 143,729.29 : x
  2. Step 2: Convert to fraction form
    252,653.94/348,641.49 = 143,729.29/x
  3. Step 3: Cross multiply
    252,653.94x = 348,641.49 × 143,729.29
  4. Step 4: Simplify right side
    252,653.94x = 50,109,993,103.60
  5. Step 5: Solve for x
    x = 50,109,993,103.60/252,653.94
  6. Step 6: Final answer
    x = 198,334.50

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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.