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Finding the Fourth Proportional to 139,603.41, 192,652.56 and 75,941.06

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Solution

The fourth proportional to 139,603.41, 192,652.56 and 75,941.06 is: 104,798.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,603.41 : 192,652.56 = 75,941.06 : x
  2. Step 2: Convert to fraction form
    139,603.41/192,652.56 = 75,941.06/x
  3. Step 3: Cross multiply
    139,603.41x = 192,652.56 × 75,941.06
  4. Step 4: Simplify right side
    139,603.41x = 14,630,238,654.85
  5. Step 5: Solve for x
    x = 14,630,238,654.85/139,603.41
  6. Step 6: Final answer
    x = 104,798.58

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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.