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Finding the Fourth Proportional to 92,804.64, 139,027.58 and 55,394.52

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Solution

The fourth proportional to 92,804.64, 139,027.58 and 55,394.52 is: 82,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,804.64 : 139,027.58 = 55,394.52 : x
  2. Step 2: Convert to fraction form
    92,804.64/139,027.58 = 55,394.52/x
  3. Step 3: Cross multiply
    92,804.64x = 139,027.58 × 55,394.52
  4. Step 4: Simplify right side
    92,804.64x = 7,701,366,060.86
  5. Step 5: Solve for x
    x = 7,701,366,060.86/92,804.64
  6. Step 6: Final answer
    x = 82,984.71

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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.