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Finding the Fourth Proportional to 207,795.88, 311,710.20 and 65,652.13

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Solution

The fourth proportional to 207,795.88, 311,710.20 and 65,652.13 is: 98,483.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,795.88 : 311,710.20 = 65,652.13 : x
  2. Step 2: Convert to fraction form
    207,795.88/311,710.20 = 65,652.13/x
  3. Step 3: Cross multiply
    207,795.88x = 311,710.20 × 65,652.13
  4. Step 4: Simplify right side
    207,795.88x = 20,464,438,572.73
  5. Step 5: Solve for x
    x = 20,464,438,572.73/207,795.88
  6. Step 6: Final answer
    x = 98,483.37

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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.