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Finding the Fourth Proportional to 73,611.59, 109,918.71 and 58,448.55

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Solution

The fourth proportional to 73,611.59, 109,918.71 and 58,448.55 is: 87,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,611.59 : 109,918.71 = 58,448.55 : x
  2. Step 2: Convert to fraction form
    73,611.59/109,918.71 = 58,448.55/x
  3. Step 3: Cross multiply
    73,611.59x = 109,918.71 × 58,448.55
  4. Step 4: Simplify right side
    73,611.59x = 6,424,589,629.57
  5. Step 5: Solve for x
    x = 6,424,589,629.57/73,611.59
  6. Step 6: Final answer
    x = 87,276.88

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.