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Finding the Fourth Proportional to 92,369.94, 127,471.94 and 54,120.34

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Solution

The fourth proportional to 92,369.94, 127,471.94 and 54,120.34 is: 74,686.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,369.94 : 127,471.94 = 54,120.34 : x
  2. Step 2: Convert to fraction form
    92,369.94/127,471.94 = 54,120.34/x
  3. Step 3: Cross multiply
    92,369.94x = 127,471.94 × 54,120.34
  4. Step 4: Simplify right side
    92,369.94x = 6,898,824,733.26
  5. Step 5: Solve for x
    x = 6,898,824,733.26/92,369.94
  6. Step 6: Final answer
    x = 74,686.90

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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.