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Finding the Fourth Proportional to 212,410.91, 318,615.96 and 62,756.32

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Solution

The fourth proportional to 212,410.91, 318,615.96 and 62,756.32 is: 94,134.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,410.91 : 318,615.96 = 62,756.32 : x
  2. Step 2: Convert to fraction form
    212,410.91/318,615.96 = 62,756.32/x
  3. Step 3: Cross multiply
    212,410.91x = 318,615.96 × 62,756.32
  4. Step 4: Simplify right side
    212,410.91x = 19,995,165,142.87
  5. Step 5: Solve for x
    x = 19,995,165,142.87/212,410.91
  6. Step 6: Final answer
    x = 94,134.36

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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.