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Finding the Fourth Proportional to 91,103.96, 125,726.58 and 52,860.62

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Solution

The fourth proportional to 91,103.96, 125,726.58 and 52,860.62 is: 72,949.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,103.96 : 125,726.58 = 52,860.62 : x
  2. Step 2: Convert to fraction form
    91,103.96/125,726.58 = 52,860.62/x
  3. Step 3: Cross multiply
    91,103.96x = 125,726.58 × 52,860.62
  4. Step 4: Simplify right side
    91,103.96x = 6,645,984,969.28
  5. Step 5: Solve for x
    x = 6,645,984,969.28/91,103.96
  6. Step 6: Final answer
    x = 72,949.46

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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.