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Finding the Fourth Proportional to 207,706.16, 311,615.03 and 65,556.93

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Solution

The fourth proportional to 207,706.16, 311,615.03 and 65,556.93 is: 98,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,706.16 : 311,615.03 = 65,556.93 : x
  2. Step 2: Convert to fraction form
    207,706.16/311,615.03 = 65,556.93/x
  3. Step 3: Cross multiply
    207,706.16x = 311,615.03 × 65,556.93
  4. Step 4: Simplify right side
    207,706.16x = 20,428,524,708.66
  5. Step 5: Solve for x
    x = 20,428,524,708.66/207,706.16
  6. Step 6: Final answer
    x = 98,353.00

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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.