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Finding the Fourth Proportional to 125,676.64, 188,513.28 and 30,907.64

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Solution

The fourth proportional to 125,676.64, 188,513.28 and 30,907.64 is: 46,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,676.64 : 188,513.28 = 30,907.64 : x
  2. Step 2: Convert to fraction form
    125,676.64/188,513.28 = 30,907.64/x
  3. Step 3: Cross multiply
    125,676.64x = 188,513.28 × 30,907.64
  4. Step 4: Simplify right side
    125,676.64x = 5,826,500,593.46
  5. Step 5: Solve for x
    x = 5,826,500,593.46/125,676.64
  6. Step 6: Final answer
    x = 46,361.05

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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.