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Finding the Fourth Proportional to 342,156.96, 512,973.81 and 207,191.66

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Solution

The fourth proportional to 342,156.96, 512,973.81 and 207,191.66 is: 310,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,156.96 : 512,973.81 = 207,191.66 : x
  2. Step 2: Convert to fraction form
    342,156.96/512,973.81 = 207,191.66/x
  3. Step 3: Cross multiply
    342,156.96x = 512,973.81 × 207,191.66
  4. Step 4: Simplify right side
    342,156.96x = 106,283,892,665.56
  5. Step 5: Solve for x
    x = 106,283,892,665.56/342,156.96
  6. Step 6: Final answer
    x = 310,629.05

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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.