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Finding the Fourth Proportional to 100,048.80, 149,819.19 and 60,042.60

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Solution

The fourth proportional to 100,048.80, 149,819.19 and 60,042.60 is: 89,911.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,048.80 : 149,819.19 = 60,042.60 : x
  2. Step 2: Convert to fraction form
    100,048.80/149,819.19 = 60,042.60/x
  3. Step 3: Cross multiply
    100,048.80x = 149,819.19 × 60,042.60
  4. Step 4: Simplify right side
    100,048.80x = 8,995,533,697.49
  5. Step 5: Solve for x
    x = 8,995,533,697.49/100,048.80
  6. Step 6: Final answer
    x = 89,911.46

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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.