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Finding the Fourth Proportional to 342,015.42, 513,023.13 and 92,697.42

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Solution

The fourth proportional to 342,015.42, 513,023.13 and 92,697.42 is: 139,046.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,015.42 : 513,023.13 = 92,697.42 : x
  2. Step 2: Convert to fraction form
    342,015.42/513,023.13 = 92,697.42/x
  3. Step 3: Cross multiply
    342,015.42x = 513,023.13 × 92,697.42
  4. Step 4: Simplify right side
    342,015.42x = 47,555,920,551.32
  5. Step 5: Solve for x
    x = 47,555,920,551.32/342,015.42
  6. Step 6: Final answer
    x = 139,046.13

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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.