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Finding the Fourth Proportional to 118,561.60, 177,981.30 and 93,618.46

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Solution

The fourth proportional to 118,561.60, 177,981.30 and 93,618.46 is: 140,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,561.60 : 177,981.30 = 93,618.46 : x
  2. Step 2: Convert to fraction form
    118,561.60/177,981.30 = 93,618.46/x
  3. Step 3: Cross multiply
    118,561.60x = 177,981.30 × 93,618.46
  4. Step 4: Simplify right side
    118,561.60x = 16,662,335,214.80
  5. Step 5: Solve for x
    x = 16,662,335,214.80/118,561.60
  6. Step 6: Final answer
    x = 140,537.37

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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.