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Finding the Fourth Proportional to 252,977.32, 349,078.98 and 139,793.32

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Solution

The fourth proportional to 252,977.32, 349,078.98 and 139,793.32 is: 192,898.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,977.32 : 349,078.98 = 139,793.32 : x
  2. Step 2: Convert to fraction form
    252,977.32/349,078.98 = 139,793.32/x
  3. Step 3: Cross multiply
    252,977.32x = 349,078.98 × 139,793.32
  4. Step 4: Simplify right side
    252,977.32x = 48,798,909,556.41
  5. Step 5: Solve for x
    x = 48,798,909,556.41/252,977.32
  6. Step 6: Final answer
    x = 192,898.36

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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.