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Finding the Fourth Proportional to 91,282.76, 125,965.72 and 50,988.52

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Solution

The fourth proportional to 91,282.76, 125,965.72 and 50,988.52 is: 70,361.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,282.76 : 125,965.72 = 50,988.52 : x
  2. Step 2: Convert to fraction form
    91,282.76/125,965.72 = 50,988.52/x
  3. Step 3: Cross multiply
    91,282.76x = 125,965.72 × 50,988.52
  4. Step 4: Simplify right side
    91,282.76x = 6,422,805,633.53
  5. Step 5: Solve for x
    x = 6,422,805,633.53/91,282.76
  6. Step 6: Final answer
    x = 70,361.65

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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.