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Finding the Fourth Proportional to 111,689.89, 167,559.54 and 36,807.01

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Solution

The fourth proportional to 111,689.89, 167,559.54 and 36,807.01 is: 55,218.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,689.89 : 167,559.54 = 36,807.01 : x
  2. Step 2: Convert to fraction form
    111,689.89/167,559.54 = 36,807.01/x
  3. Step 3: Cross multiply
    111,689.89x = 167,559.54 × 36,807.01
  4. Step 4: Simplify right side
    111,689.89x = 6,167,365,664.38
  5. Step 5: Solve for x
    x = 6,167,365,664.38/111,689.89
  6. Step 6: Final answer
    x = 55,218.66

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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.