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Finding the Fourth Proportional to 92,627.52, 127,828.32 and 56,796.96

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Solution

The fourth proportional to 92,627.52, 127,828.32 and 56,796.96 is: 78,381.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,627.52 : 127,828.32 = 56,796.96 : x
  2. Step 2: Convert to fraction form
    92,627.52/127,828.32 = 56,796.96/x
  3. Step 3: Cross multiply
    92,627.52x = 127,828.32 × 56,796.96
  4. Step 4: Simplify right side
    92,627.52x = 7,260,259,977.91
  5. Step 5: Solve for x
    x = 7,260,259,977.91/92,627.52
  6. Step 6: Final answer
    x = 78,381.24

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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.