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Finding the Fourth Proportional to 118,161.98, 163,062.80 and 67,174.73

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Solution

The fourth proportional to 118,161.98, 163,062.80 and 67,174.73 is: 92,700.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,161.98 : 163,062.80 = 67,174.73 : x
  2. Step 2: Convert to fraction form
    118,161.98/163,062.80 = 67,174.73/x
  3. Step 3: Cross multiply
    118,161.98x = 163,062.80 × 67,174.73
  4. Step 4: Simplify right side
    118,161.98x = 10,953,698,411.86
  5. Step 5: Solve for x
    x = 10,953,698,411.86/118,161.98
  6. Step 6: Final answer
    x = 92,700.71

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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.