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Finding the Fourth Proportional to 139,590.42, 209,404.94 and 44,798.36

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Solution

The fourth proportional to 139,590.42, 209,404.94 and 44,798.36 is: 67,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,590.42 : 209,404.94 = 44,798.36 : x
  2. Step 2: Convert to fraction form
    139,590.42/209,404.94 = 44,798.36/x
  3. Step 3: Cross multiply
    139,590.42x = 209,404.94 × 44,798.36
  4. Step 4: Simplify right side
    139,590.42x = 9,380,996,616.88
  5. Step 5: Solve for x
    x = 9,380,996,616.88/139,590.42
  6. Step 6: Final answer
    x = 67,203.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.