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Finding the Fourth Proportional to 92,557.60, 127,664.52 and 56,761.87

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Solution

The fourth proportional to 92,557.60, 127,664.52 and 56,761.87 is: 78,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,557.60 : 127,664.52 = 56,761.87 : x
  2. Step 2: Convert to fraction form
    92,557.60/127,664.52 = 56,761.87/x
  3. Step 3: Cross multiply
    92,557.60x = 127,664.52 × 56,761.87
  4. Step 4: Simplify right side
    92,557.60x = 7,246,476,887.85
  5. Step 5: Solve for x
    x = 7,246,476,887.85/92,557.60
  6. Step 6: Final answer
    x = 78,291.54

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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.