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Finding the Fourth Proportional to 340,903.89, 511,306.59 and 104,183.01

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Solution

The fourth proportional to 340,903.89, 511,306.59 and 104,183.01 is: 156,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,903.89 : 511,306.59 = 104,183.01 : x
  2. Step 2: Convert to fraction form
    340,903.89/511,306.59 = 104,183.01/x
  3. Step 3: Cross multiply
    340,903.89x = 511,306.59 × 104,183.01
  4. Step 4: Simplify right side
    340,903.89x = 53,269,459,969.72
  5. Step 5: Solve for x
    x = 53,269,459,969.72/340,903.89
  6. Step 6: Final answer
    x = 156,259.47

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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.