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Finding the Fourth Proportional to 260,858.67, 359,974.65 and 147,681.42

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Solution

The fourth proportional to 260,858.67, 359,974.65 and 147,681.42 is: 203,794.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,858.67 : 359,974.65 = 147,681.42 : x
  2. Step 2: Convert to fraction form
    260,858.67/359,974.65 = 147,681.42/x
  3. Step 3: Cross multiply
    260,858.67x = 359,974.65 × 147,681.42
  4. Step 4: Simplify right side
    260,858.67x = 53,161,567,476.00
  5. Step 5: Solve for x
    x = 53,161,567,476.00/260,858.67
  6. Step 6: Final answer
    x = 203,794.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.