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Finding the Fourth Proportional to 92,495.25, 127,905.89 and 88,318.08

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Solution

The fourth proportional to 92,495.25, 127,905.89 and 88,318.08 is: 122,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,495.25 : 127,905.89 = 88,318.08 : x
  2. Step 2: Convert to fraction form
    92,495.25/127,905.89 = 88,318.08/x
  3. Step 3: Cross multiply
    92,495.25x = 127,905.89 × 88,318.08
  4. Step 4: Simplify right side
    92,495.25x = 11,296,402,183.90
  5. Step 5: Solve for x
    x = 11,296,402,183.90/92,495.25
  6. Step 6: Final answer
    x = 122,129.54

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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.