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Finding the Fourth Proportional to 252,496.80, 348,452.82 and 139,326.84

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Solution

The fourth proportional to 252,496.80, 348,452.82 and 139,326.84 is: 192,275.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,496.80 : 348,452.82 = 139,326.84 : x
  2. Step 2: Convert to fraction form
    252,496.80/348,452.82 = 139,326.84/x
  3. Step 3: Cross multiply
    252,496.80x = 348,452.82 × 139,326.84
  4. Step 4: Simplify right side
    252,496.80x = 48,548,830,299.69
  5. Step 5: Solve for x
    x = 48,548,830,299.69/252,496.80
  6. Step 6: Final answer
    x = 192,275.03

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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.