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Finding the Fourth Proportional to 111,569.38, 167,354.06 and 28,463.38

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Solution

The fourth proportional to 111,569.38, 167,354.06 and 28,463.38 is: 42,695.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,569.38 : 167,354.06 = 28,463.38 : x
  2. Step 2: Convert to fraction form
    111,569.38/167,354.06 = 28,463.38/x
  3. Step 3: Cross multiply
    111,569.38x = 167,354.06 × 28,463.38
  4. Step 4: Simplify right side
    111,569.38x = 4,763,462,204.32
  5. Step 5: Solve for x
    x = 4,763,462,204.32/111,569.38
  6. Step 6: Final answer
    x = 42,695.07

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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.