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Finding the Fourth Proportional to 312,668.02, 468,998.63 and 76,010.95

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Solution

The fourth proportional to 312,668.02, 468,998.63 and 76,010.95 is: 114,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,668.02 : 468,998.63 = 76,010.95 : x
  2. Step 2: Convert to fraction form
    312,668.02/468,998.63 = 76,010.95/x
  3. Step 3: Cross multiply
    312,668.02x = 468,998.63 × 76,010.95
  4. Step 4: Simplify right side
    312,668.02x = 35,649,028,689.95
  5. Step 5: Solve for x
    x = 35,649,028,689.95/312,668.02
  6. Step 6: Final answer
    x = 114,015.59

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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.