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Finding the Fourth Proportional to 111,697.24, 167,505.29 and 61,133.64

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Solution

The fourth proportional to 111,697.24, 167,505.29 and 61,133.64 is: 91,678.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,697.24 : 167,505.29 = 61,133.64 : x
  2. Step 2: Convert to fraction form
    111,697.24/167,505.29 = 61,133.64/x
  3. Step 3: Cross multiply
    111,697.24x = 167,505.29 × 61,133.64
  4. Step 4: Simplify right side
    111,697.24x = 10,240,208,096.96
  5. Step 5: Solve for x
    x = 10,240,208,096.96/111,697.24
  6. Step 6: Final answer
    x = 91,678.26

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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.