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Finding the Fourth Proportional to 268,605.50, 370,667.84 and 147,746.78

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Solution

The fourth proportional to 268,605.50, 370,667.84 and 147,746.78 is: 203,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,605.50 : 370,667.84 = 147,746.78 : x
  2. Step 2: Convert to fraction form
    268,605.50/370,667.84 = 147,746.78/x
  3. Step 3: Cross multiply
    268,605.50x = 370,667.84 × 147,746.78
  4. Step 4: Simplify right side
    268,605.50x = 54,764,977,217.48
  5. Step 5: Solve for x
    x = 54,764,977,217.48/268,605.50
  6. Step 6: Final answer
    x = 203,886.29

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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.