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Finding the Fourth Proportional to 92,932.74, 128,247.48 and 52,653.96

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Solution

The fourth proportional to 92,932.74, 128,247.48 and 52,653.96 is: 72,662.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,932.74 : 128,247.48 = 52,653.96 : x
  2. Step 2: Convert to fraction form
    92,932.74/128,247.48 = 52,653.96/x
  3. Step 3: Cross multiply
    92,932.74x = 128,247.48 × 52,653.96
  4. Step 4: Simplify right side
    92,932.74x = 6,752,737,682.02
  5. Step 5: Solve for x
    x = 6,752,737,682.02/92,932.74
  6. Step 6: Final answer
    x = 72,662.63

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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.