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Finding the Fourth Proportional to 207,573.26, 311,360.18 and 57,813.98

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Solution

The fourth proportional to 207,573.26, 311,360.18 and 57,813.98 is: 86,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,573.26 : 311,360.18 = 57,813.98 : x
  2. Step 2: Convert to fraction form
    207,573.26/311,360.18 = 57,813.98/x
  3. Step 3: Cross multiply
    207,573.26x = 311,360.18 × 57,813.98
  4. Step 4: Simplify right side
    207,573.26x = 18,000,969,373.45
  5. Step 5: Solve for x
    x = 18,000,969,373.45/207,573.26
  6. Step 6: Final answer
    x = 86,721.04

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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.