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Finding the Fourth Proportional to 268,394.50, 370,384.41 and 155,224.54

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Solution

The fourth proportional to 268,394.50, 370,384.41 and 155,224.54 is: 214,209.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,394.50 : 370,384.41 = 155,224.54 : x
  2. Step 2: Convert to fraction form
    268,394.50/370,384.41 = 155,224.54/x
  3. Step 3: Cross multiply
    268,394.50x = 370,384.41 × 155,224.54
  4. Step 4: Simplify right side
    268,394.50x = 57,492,749,665.42
  5. Step 5: Solve for x
    x = 57,492,749,665.42/268,394.50
  6. Step 6: Final answer
    x = 214,209.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.