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Finding the Fourth Proportional to 124,325.69, 186,489.83 and 99,523.40

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Solution

The fourth proportional to 124,325.69, 186,489.83 and 99,523.40 is: 149,286.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,325.69 : 186,489.83 = 99,523.40 : x
  2. Step 2: Convert to fraction form
    124,325.69/186,489.83 = 99,523.40/x
  3. Step 3: Cross multiply
    124,325.69x = 186,489.83 × 99,523.40
  4. Step 4: Simplify right side
    124,325.69x = 18,560,102,662.06
  5. Step 5: Solve for x
    x = 18,560,102,662.06/124,325.69
  6. Step 6: Final answer
    x = 149,286.15

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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.