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Finding the Fourth Proportional to 245,199.96, 367,538.58 and 139,791.96

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Solution

The fourth proportional to 245,199.96, 367,538.58 and 139,791.96 is: 209,538.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,199.96 : 367,538.58 = 139,791.96 : x
  2. Step 2: Convert to fraction form
    245,199.96/367,538.58 = 139,791.96/x
  3. Step 3: Cross multiply
    245,199.96x = 367,538.58 × 139,791.96
  4. Step 4: Simplify right side
    245,199.96x = 51,378,938,473.82
  5. Step 5: Solve for x
    x = 51,378,938,473.82/245,199.96
  6. Step 6: Final answer
    x = 209,538.93

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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.