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Finding the Fourth Proportional to 252,197.80, 348,032.86 and 139,022.96

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Solution

The fourth proportional to 252,197.80, 348,032.86 and 139,022.96 is: 191,851.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,197.80 : 348,032.86 = 139,022.96 : x
  2. Step 2: Convert to fraction form
    252,197.80/348,032.86 = 139,022.96/x
  3. Step 3: Cross multiply
    252,197.80x = 348,032.86 × 139,022.96
  4. Step 4: Simplify right side
    252,197.80x = 48,384,558,374.47
  5. Step 5: Solve for x
    x = 48,384,558,374.47/252,197.80
  6. Step 6: Final answer
    x = 191,851.63

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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.