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Finding the Fourth Proportional to 201,666.30, 302,608.80 and 83,349.60

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Solution

The fourth proportional to 201,666.30, 302,608.80 and 83,349.60 is: 125,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,666.30 : 302,608.80 = 83,349.60 : x
  2. Step 2: Convert to fraction form
    201,666.30/302,608.80 = 83,349.60/x
  3. Step 3: Cross multiply
    201,666.30x = 302,608.80 × 83,349.60
  4. Step 4: Simplify right side
    201,666.30x = 25,222,322,436.48
  5. Step 5: Solve for x
    x = 25,222,322,436.48/201,666.30
  6. Step 6: Final answer
    x = 125,069.59

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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.