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Finding the Fourth Proportional to 311,851.49, 467,834.93 and 98,673.06

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Solution

The fourth proportional to 311,851.49, 467,834.93 and 98,673.06 is: 148,027.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,851.49 : 467,834.93 = 98,673.06 : x
  2. Step 2: Convert to fraction form
    311,851.49/467,834.93 = 98,673.06/x
  3. Step 3: Cross multiply
    311,851.49x = 467,834.93 × 98,673.06
  4. Step 4: Simplify right side
    311,851.49x = 46,162,704,117.99
  5. Step 5: Solve for x
    x = 46,162,704,117.99/311,851.49
  6. Step 6: Final answer
    x = 148,027.85

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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.