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Finding the Fourth Proportional to 251,840.16, 377,699.76 and 74,299.04

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Solution

The fourth proportional to 251,840.16, 377,699.76 and 74,299.04 is: 111,430.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,840.16 : 377,699.76 = 74,299.04 : x
  2. Step 2: Convert to fraction form
    251,840.16/377,699.76 = 74,299.04/x
  3. Step 3: Cross multiply
    251,840.16x = 377,699.76 × 74,299.04
  4. Step 4: Simplify right side
    251,840.16x = 28,062,729,576.23
  5. Step 5: Solve for x
    x = 28,062,729,576.23/251,840.16
  6. Step 6: Final answer
    x = 111,430.72

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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.