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Finding the Fourth Proportional to 91,198.86, 125,866.35 and 53,476.62

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Solution

The fourth proportional to 91,198.86, 125,866.35 and 53,476.62 is: 73,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,198.86 : 125,866.35 = 53,476.62 : x
  2. Step 2: Convert to fraction form
    91,198.86/125,866.35 = 53,476.62/x
  3. Step 3: Cross multiply
    91,198.86x = 125,866.35 × 53,476.62
  4. Step 4: Simplify right side
    91,198.86x = 6,730,906,969.74
  5. Step 5: Solve for x
    x = 6,730,906,969.74/91,198.86
  6. Step 6: Final answer
    x = 73,804.73

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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.