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Finding the Fourth Proportional to 111,904.67, 167,857.02 and 107,045.45

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Solution

The fourth proportional to 111,904.67, 167,857.02 and 107,045.45 is: 160,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,904.67 : 167,857.02 = 107,045.45 : x
  2. Step 2: Convert to fraction form
    111,904.67/167,857.02 = 107,045.45/x
  3. Step 3: Cross multiply
    111,904.67x = 167,857.02 × 107,045.45
  4. Step 4: Simplify right side
    111,904.67x = 17,968,329,402.27
  5. Step 5: Solve for x
    x = 17,968,329,402.27/111,904.67
  6. Step 6: Final answer
    x = 160,568.19

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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.