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Finding the Fourth Proportional to 118,077.20, 177,000.60 and 105,635.60

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Solution

The fourth proportional to 118,077.20, 177,000.60 and 105,635.60 is: 158,350.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,077.20 : 177,000.60 = 105,635.60 : x
  2. Step 2: Convert to fraction form
    118,077.20/177,000.60 = 105,635.60/x
  3. Step 3: Cross multiply
    118,077.20x = 177,000.60 × 105,635.60
  4. Step 4: Simplify right side
    118,077.20x = 18,697,564,581.36
  5. Step 5: Solve for x
    x = 18,697,564,581.36/118,077.20
  6. Step 6: Final answer
    x = 158,350.34

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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.