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Finding the Fourth Proportional to 118,981.60, 164,193.03 and 67,993.74

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Solution

The fourth proportional to 118,981.60, 164,193.03 and 67,993.74 is: 93,830.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,981.60 : 164,193.03 = 67,993.74 : x
  2. Step 2: Convert to fraction form
    118,981.60/164,193.03 = 67,993.74/x
  3. Step 3: Cross multiply
    118,981.60x = 164,193.03 × 67,993.74
  4. Step 4: Simplify right side
    118,981.60x = 11,164,098,191.63
  5. Step 5: Solve for x
    x = 11,164,098,191.63/118,981.60
  6. Step 6: Final answer
    x = 93,830.46

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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.