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Finding the Fourth Proportional to 268,900.94, 403,285.80 and 111,174.50

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Solution

The fourth proportional to 268,900.94, 403,285.80 and 111,174.50 is: 166,734.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,900.94 : 403,285.80 = 111,174.50 : x
  2. Step 2: Convert to fraction form
    268,900.94/403,285.80 = 111,174.50/x
  3. Step 3: Cross multiply
    268,900.94x = 403,285.80 × 111,174.50
  4. Step 4: Simplify right side
    268,900.94x = 44,835,097,172.10
  5. Step 5: Solve for x
    x = 44,835,097,172.10/268,900.94
  6. Step 6: Final answer
    x = 166,734.62

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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.