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Finding the Fourth Proportional to 342,000,844.80, 513,337,190.40 and 169,672,243.20

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Solution

The fourth proportional to 342,000,844.80, 513,337,190.40 and 169,672,243.20 is: 254,675,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,000,844.80 : 513,337,190.40 = 169,672,243.20 : x
  2. Step 2: Convert to fraction form
    342,000,844.80/513,337,190.40 = 169,672,243.20/x
  3. Step 3: Cross multiply
    342,000,844.80x = 513,337,190.40 × 169,672,243.20
  4. Step 4: Simplify right side
    342,000,844.80x = 87,099,072,613,153,488
  5. Step 5: Solve for x
    x = 87,099,072,613,153,488/342,000,844.80
  6. Step 6: Final answer
    x = 254,675,021.82

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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.