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Finding the Fourth Proportional to 92,292.69, 127,363.86 and 49,851.21

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Solution

The fourth proportional to 92,292.69, 127,363.86 and 49,851.21 is: 68,794.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,292.69 : 127,363.86 = 49,851.21 : x
  2. Step 2: Convert to fraction form
    92,292.69/127,363.86 = 49,851.21/x
  3. Step 3: Cross multiply
    92,292.69x = 127,363.86 × 49,851.21
  4. Step 4: Simplify right side
    92,292.69x = 6,349,242,531.27
  5. Step 5: Solve for x
    x = 6,349,242,531.27/92,292.69
  6. Step 6: Final answer
    x = 68,794.64

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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.