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Finding the Fourth Proportional to 92,536.64, 127,695.60 and 54,290.96

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Solution

The fourth proportional to 92,536.64, 127,695.60 and 54,290.96 is: 74,918.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,536.64 : 127,695.60 = 54,290.96 : x
  2. Step 2: Convert to fraction form
    92,536.64/127,695.60 = 54,290.96/x
  3. Step 3: Cross multiply
    92,536.64x = 127,695.60 × 54,290.96
  4. Step 4: Simplify right side
    92,536.64x = 6,932,716,711.78
  5. Step 5: Solve for x
    x = 6,932,716,711.78/92,536.64
  6. Step 6: Final answer
    x = 74,918.61

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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.