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Finding the Fourth Proportional to 92,690.80, 127,919.86 and 52,404.94

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Solution

The fourth proportional to 92,690.80, 127,919.86 and 52,404.94 is: 72,322.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,690.80 : 127,919.86 = 52,404.94 : x
  2. Step 2: Convert to fraction form
    92,690.80/127,919.86 = 52,404.94/x
  3. Step 3: Cross multiply
    92,690.80x = 127,919.86 × 52,404.94
  4. Step 4: Simplify right side
    92,690.80x = 6,703,632,617.00
  5. Step 5: Solve for x
    x = 6,703,632,617.00/92,690.80
  6. Step 6: Final answer
    x = 72,322.53

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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.