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Finding the Fourth Proportional to 74,289.81, 111,434.31 and 24,369.51

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Solution

The fourth proportional to 74,289.81, 111,434.31 and 24,369.51 is: 36,554.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,289.81 : 111,434.31 = 24,369.51 : x
  2. Step 2: Convert to fraction form
    74,289.81/111,434.31 = 24,369.51/x
  3. Step 3: Cross multiply
    74,289.81x = 111,434.31 × 24,369.51
  4. Step 4: Simplify right side
    74,289.81x = 2,715,599,531.89
  5. Step 5: Solve for x
    x = 2,715,599,531.89/74,289.81
  6. Step 6: Final answer
    x = 36,554.13

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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.