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Finding the Fourth Proportional to 259,546.80, 388,859.40 and 160,935.60

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Solution

The fourth proportional to 259,546.80, 388,859.40 and 160,935.60 is: 241,117.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,546.80 : 388,859.40 = 160,935.60 : x
  2. Step 2: Convert to fraction form
    259,546.80/388,859.40 = 160,935.60/x
  3. Step 3: Cross multiply
    259,546.80x = 388,859.40 × 160,935.60
  4. Step 4: Simplify right side
    259,546.80x = 62,581,320,854.64
  5. Step 5: Solve for x
    x = 62,581,320,854.64/259,546.80
  6. Step 6: Final answer
    x = 241,117.67

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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.