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Finding the Fourth Proportional to 307,971.60, 461,611.80 and 174,915.60

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Solution

The fourth proportional to 307,971.60, 461,611.80 and 174,915.60 is: 262,177.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,971.60 : 461,611.80 = 174,915.60 : x
  2. Step 2: Convert to fraction form
    307,971.60/461,611.80 = 174,915.60/x
  3. Step 3: Cross multiply
    307,971.60x = 461,611.80 × 174,915.60
  4. Step 4: Simplify right side
    307,971.60x = 80,743,104,964.08
  5. Step 5: Solve for x
    x = 80,743,104,964.08/307,971.60
  6. Step 6: Final answer
    x = 262,177.11

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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.