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Finding the Fourth Proportional to 252,242.72, 348,097.29 and 139,069.52

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Solution

The fourth proportional to 252,242.72, 348,097.29 and 139,069.52 is: 191,917.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,242.72 : 348,097.29 = 139,069.52 : x
  2. Step 2: Convert to fraction form
    252,242.72/348,097.29 = 139,069.52/x
  3. Step 3: Cross multiply
    252,242.72x = 348,097.29 × 139,069.52
  4. Step 4: Simplify right side
    252,242.72x = 48,409,723,033.60
  5. Step 5: Solve for x
    x = 48,409,723,033.60/252,242.72
  6. Step 6: Final answer
    x = 191,917.23

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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.