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Finding the Fourth Proportional to 124,048.60, 186,015.30 and 53,891.80

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Solution

The fourth proportional to 124,048.60, 186,015.30 and 53,891.80 is: 80,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,048.60 : 186,015.30 = 53,891.80 : x
  2. Step 2: Convert to fraction form
    124,048.60/186,015.30 = 53,891.80/x
  3. Step 3: Cross multiply
    124,048.60x = 186,015.30 × 53,891.80
  4. Step 4: Simplify right side
    124,048.60x = 10,024,699,344.54
  5. Step 5: Solve for x
    x = 10,024,699,344.54/124,048.60
  6. Step 6: Final answer
    x = 80,812.68

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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.