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Finding the Fourth Proportional to 116,168.49, 160,318.98 and 65,197.35

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Solution

The fourth proportional to 116,168.49, 160,318.98 and 65,197.35 is: 89,975.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,168.49 : 160,318.98 = 65,197.35 : x
  2. Step 2: Convert to fraction form
    116,168.49/160,318.98 = 65,197.35/x
  3. Step 3: Cross multiply
    116,168.49x = 160,318.98 × 65,197.35
  4. Step 4: Simplify right side
    116,168.49x = 10,452,372,650.70
  5. Step 5: Solve for x
    x = 10,452,372,650.70/116,168.49
  6. Step 6: Final answer
    x = 89,975.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.