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Finding the Fourth Proportional to 272,034.55, 408,051.83 and 266,202.55

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Solution

The fourth proportional to 272,034.55, 408,051.83 and 266,202.55 is: 399,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,034.55 : 408,051.83 = 266,202.55 : x
  2. Step 2: Convert to fraction form
    272,034.55/408,051.83 = 266,202.55/x
  3. Step 3: Cross multiply
    272,034.55x = 408,051.83 × 266,202.55
  4. Step 4: Simplify right side
    272,034.55x = 108,624,436,347.15
  5. Step 5: Solve for x
    x = 108,624,436,347.15/272,034.55
  6. Step 6: Final answer
    x = 399,303.83

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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.