Home / 209,584.90-314,187.76-76,433.96

Finding the Fourth Proportional to 209,584.90, 314,187.76 and 76,433.96

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Solution

The fourth proportional to 209,584.90, 314,187.76 and 76,433.96 is: 114,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,584.90 : 314,187.76 = 76,433.96 : x
  2. Step 2: Convert to fraction form
    209,584.90/314,187.76 = 76,433.96/x
  3. Step 3: Cross multiply
    209,584.90x = 314,187.76 × 76,433.96
  4. Step 4: Simplify right side
    209,584.90x = 24,014,614,680.33
  5. Step 5: Solve for x
    x = 24,014,614,680.33/209,584.90
  6. Step 6: Final answer
    x = 114,581.80

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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.