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Finding the Fourth Proportional to 252,496.97, 348,453.12 and 139,327.01

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Solution

The fourth proportional to 252,496.97, 348,453.12 and 139,327.01 is: 192,275.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,496.97 : 348,453.12 = 139,327.01 : x
  2. Step 2: Convert to fraction form
    252,496.97/348,453.12 = 139,327.01/x
  3. Step 3: Cross multiply
    252,496.97x = 348,453.12 × 139,327.01
  4. Step 4: Simplify right side
    252,496.97x = 48,548,931,421.68
  5. Step 5: Solve for x
    x = 48,548,931,421.68/252,496.97
  6. Step 6: Final answer
    x = 192,275.30

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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.