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Finding the Fourth Proportional to 340,704.80, 511,057.20 and 104,047.10

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Solution

The fourth proportional to 340,704.80, 511,057.20 and 104,047.10 is: 156,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,704.80 : 511,057.20 = 104,047.10 : x
  2. Step 2: Convert to fraction form
    340,704.80/511,057.20 = 104,047.10/x
  3. Step 3: Cross multiply
    340,704.80x = 511,057.20 × 104,047.10
  4. Step 4: Simplify right side
    340,704.80x = 53,174,019,594.12
  5. Step 5: Solve for x
    x = 53,174,019,594.12/340,704.80
  6. Step 6: Final answer
    x = 156,070.65

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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.