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Finding the Fourth Proportional to 114,485.78, 171,827.49 and 79,450.04

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Solution

The fourth proportional to 114,485.78, 171,827.49 and 79,450.04 is: 119,243.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,485.78 : 171,827.49 = 79,450.04 : x
  2. Step 2: Convert to fraction form
    114,485.78/171,827.49 = 79,450.04/x
  3. Step 3: Cross multiply
    114,485.78x = 171,827.49 × 79,450.04
  4. Step 4: Simplify right side
    114,485.78x = 13,651,700,953.60
  5. Step 5: Solve for x
    x = 13,651,700,953.60/114,485.78
  6. Step 6: Final answer
    x = 119,243.64

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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.