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Finding the Fourth Proportional to 111,591.81, 167,398.74 and 36,681.57

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Solution

The fourth proportional to 111,591.81, 167,398.74 and 36,681.57 is: 55,025.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,591.81 : 167,398.74 = 36,681.57 : x
  2. Step 2: Convert to fraction form
    111,591.81/167,398.74 = 36,681.57/x
  3. Step 3: Cross multiply
    111,591.81x = 167,398.74 × 36,681.57
  4. Step 4: Simplify right side
    111,591.81x = 6,140,448,599.22
  5. Step 5: Solve for x
    x = 6,140,448,599.22/111,591.81
  6. Step 6: Final answer
    x = 55,025.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.