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Finding the Fourth Proportional to 201,741.20, 302,482.20 and 83,459.60

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Solution

The fourth proportional to 201,741.20, 302,482.20 and 83,459.60 is: 125,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,741.20 : 302,482.20 = 83,459.60 : x
  2. Step 2: Convert to fraction form
    201,741.20/302,482.20 = 83,459.60/x
  3. Step 3: Cross multiply
    201,741.20x = 302,482.20 × 83,459.60
  4. Step 4: Simplify right side
    201,741.20x = 25,245,043,419.12
  5. Step 5: Solve for x
    x = 25,245,043,419.12/201,741.20
  6. Step 6: Final answer
    x = 125,135.78

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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.