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Finding the Fourth Proportional to 114,501.90, 171,672.85 and 67,730.70

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Solution

The fourth proportional to 114,501.90, 171,672.85 and 67,730.70 is: 101,548.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,501.90 : 171,672.85 = 67,730.70 : x
  2. Step 2: Convert to fraction form
    114,501.90/171,672.85 = 67,730.70/x
  3. Step 3: Cross multiply
    114,501.90x = 171,672.85 × 67,730.70
  4. Step 4: Simplify right side
    114,501.90x = 11,627,522,301.50
  5. Step 5: Solve for x
    x = 11,627,522,301.50/114,501.90
  6. Step 6: Final answer
    x = 101,548.73

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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.