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Finding the Fourth Proportional to 307,069.79, 460,255.28 and 186,861.62

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Solution

The fourth proportional to 307,069.79, 460,255.28 and 186,861.62 is: 280,079.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,069.79 : 460,255.28 = 186,861.62 : x
  2. Step 2: Convert to fraction form
    307,069.79/460,255.28 = 186,861.62/x
  3. Step 3: Cross multiply
    307,069.79x = 460,255.28 × 186,861.62
  4. Step 4: Simplify right side
    307,069.79x = 86,004,043,998.77
  5. Step 5: Solve for x
    x = 86,004,043,998.77/307,069.79
  6. Step 6: Final answer
    x = 280,079.80

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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.