Home / 345,107.20-517,734.40-195,417.60

Finding the Fourth Proportional to 345,107.20, 517,734.40 and 195,417.60

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Solution

The fourth proportional to 345,107.20, 517,734.40 and 195,417.60 is: 293,168.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,107.20 : 517,734.40 = 195,417.60 : x
  2. Step 2: Convert to fraction form
    345,107.20/517,734.40 = 195,417.60/x
  3. Step 3: Cross multiply
    345,107.20x = 517,734.40 × 195,417.60
  4. Step 4: Simplify right side
    345,107.20x = 101,174,413,885.44
  5. Step 5: Solve for x
    x = 101,174,413,885.44/345,107.20
  6. Step 6: Final answer
    x = 293,168.08

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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.