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Finding the Fourth Proportional to 107,369.29, 161,072.79 and 40,815.24

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Solution

The fourth proportional to 107,369.29, 161,072.79 and 40,815.24 is: 61,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,369.29 : 161,072.79 = 40,815.24 : x
  2. Step 2: Convert to fraction form
    107,369.29/161,072.79 = 40,815.24/x
  3. Step 3: Cross multiply
    107,369.29x = 161,072.79 × 40,815.24
  4. Step 4: Simplify right side
    107,369.29x = 6,574,224,581.32
  5. Step 5: Solve for x
    x = 6,574,224,581.32/107,369.29
  6. Step 6: Final answer
    x = 61,230.03

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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.