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Finding the Fourth Proportional to 340,322.38, 510,464.94 and 103,645.24

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Solution

The fourth proportional to 340,322.38, 510,464.94 and 103,645.24 is: 155,462.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,322.38 : 510,464.94 = 103,645.24 : x
  2. Step 2: Convert to fraction form
    340,322.38/510,464.94 = 103,645.24/x
  3. Step 3: Cross multiply
    340,322.38x = 510,464.94 × 103,645.24
  4. Step 4: Simplify right side
    340,322.38x = 52,907,261,217.89
  5. Step 5: Solve for x
    x = 52,907,261,217.89/340,322.38
  6. Step 6: Final answer
    x = 155,462.19

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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.