Home / 206,385.14-309,556.96-56,640.48

Finding the Fourth Proportional to 206,385.14, 309,556.96 and 56,640.48

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Solution

The fourth proportional to 206,385.14, 309,556.96 and 56,640.48 is: 84,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,385.14 : 309,556.96 = 56,640.48 : x
  2. Step 2: Convert to fraction form
    206,385.14/309,556.96 = 56,640.48/x
  3. Step 3: Cross multiply
    206,385.14x = 309,556.96 × 56,640.48
  4. Step 4: Simplify right side
    206,385.14x = 17,533,454,801.74
  5. Step 5: Solve for x
    x = 17,533,454,801.74/206,385.14
  6. Step 6: Final answer
    x = 84,955.03

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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.