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Finding the Fourth Proportional to 118,674.82, 163,775.76 and 67,695.85

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Solution

The fourth proportional to 118,674.82, 163,775.76 and 67,695.85 is: 93,422.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,674.82 : 163,775.76 = 67,695.85 : x
  2. Step 2: Convert to fraction form
    118,674.82/163,775.76 = 67,695.85/x
  3. Step 3: Cross multiply
    118,674.82x = 163,775.76 × 67,695.85
  4. Step 4: Simplify right side
    118,674.82x = 11,086,939,282.60
  5. Step 5: Solve for x
    x = 11,086,939,282.60/118,674.82
  6. Step 6: Final answer
    x = 93,422.84

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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.