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Finding the Fourth Proportional to 114,411.36, 171,617.20 and 47,815.08

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Solution

The fourth proportional to 114,411.36, 171,617.20 and 47,815.08 is: 71,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,411.36 : 171,617.20 = 47,815.08 : x
  2. Step 2: Convert to fraction form
    114,411.36/171,617.20 = 47,815.08/x
  3. Step 3: Cross multiply
    114,411.36x = 171,617.20 × 47,815.08
  4. Step 4: Simplify right side
    114,411.36x = 8,205,890,147.38
  5. Step 5: Solve for x
    x = 8,205,890,147.38/114,411.36
  6. Step 6: Final answer
    x = 71,722.69

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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.