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Finding the Fourth Proportional to 114,636.68, 171,960.54 and 48,078.98

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Solution

The fourth proportional to 114,636.68, 171,960.54 and 48,078.98 is: 72,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,636.68 : 171,960.54 = 48,078.98 : x
  2. Step 2: Convert to fraction form
    114,636.68/171,960.54 = 48,078.98/x
  3. Step 3: Cross multiply
    114,636.68x = 171,960.54 × 48,078.98
  4. Step 4: Simplify right side
    114,636.68x = 8,267,687,363.45
  5. Step 5: Solve for x
    x = 8,267,687,363.45/114,636.68
  6. Step 6: Final answer
    x = 72,120.79

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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.