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Finding the Fourth Proportional to 92,773.69, 128,027.72 and 52,486.58

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Solution

The fourth proportional to 92,773.69, 128,027.72 and 52,486.58 is: 72,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,773.69 : 128,027.72 = 52,486.58 : x
  2. Step 2: Convert to fraction form
    92,773.69/128,027.72 = 52,486.58/x
  3. Step 3: Cross multiply
    92,773.69x = 128,027.72 × 52,486.58
  4. Step 4: Simplify right side
    92,773.69x = 6,719,737,619.28
  5. Step 5: Solve for x
    x = 6,719,737,619.28/92,773.69
  6. Step 6: Final answer
    x = 72,431.50

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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.