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Finding the Fourth Proportional to 111,935.66, 167,903.62 and 92,172.76

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Solution

The fourth proportional to 111,935.66, 167,903.62 and 92,172.76 is: 138,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,935.66 : 167,903.62 = 92,172.76 : x
  2. Step 2: Convert to fraction form
    111,935.66/167,903.62 = 92,172.76/x
  3. Step 3: Cross multiply
    111,935.66x = 167,903.62 × 92,172.76
  4. Step 4: Simplify right side
    111,935.66x = 15,476,139,419.20
  5. Step 5: Solve for x
    x = 15,476,139,419.20/111,935.66
  6. Step 6: Final answer
    x = 138,259.25

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1.5x scale

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.