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Finding the Fourth Proportional to 114,650.81, 171,913.07 and 61,405.19

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Solution

The fourth proportional to 114,650.81, 171,913.07 and 61,405.19 is: 92,073.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,650.81 : 171,913.07 = 61,405.19 : x
  2. Step 2: Convert to fraction form
    114,650.81/171,913.07 = 61,405.19/x
  3. Step 3: Cross multiply
    114,650.81x = 171,913.07 × 61,405.19
  4. Step 4: Simplify right side
    114,650.81x = 10,556,354,726.83
  5. Step 5: Solve for x
    x = 10,556,354,726.83/114,650.81
  6. Step 6: Final answer
    x = 92,073.97

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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.