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Finding the Fourth Proportional to 245,225.94, 367,640.40 and 76,659.48

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Solution

The fourth proportional to 245,225.94, 367,640.40 and 76,659.48 is: 114,927.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,225.94 : 367,640.40 = 76,659.48 : x
  2. Step 2: Convert to fraction form
    245,225.94/367,640.40 = 76,659.48/x
  3. Step 3: Cross multiply
    245,225.94x = 367,640.40 × 76,659.48
  4. Step 4: Simplify right side
    245,225.94x = 28,183,121,890.99
  5. Step 5: Solve for x
    x = 28,183,121,890.99/245,225.94
  6. Step 6: Final answer
    x = 114,927.16

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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.