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Finding the Fourth Proportional to 201,616.40, 302,424.60 and 83,372.60

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Solution

The fourth proportional to 201,616.40, 302,424.60 and 83,372.60 is: 125,058.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,616.40 : 302,424.60 = 83,372.60 : x
  2. Step 2: Convert to fraction form
    201,616.40/302,424.60 = 83,372.60/x
  3. Step 3: Cross multiply
    201,616.40x = 302,424.60 × 83,372.60
  4. Step 4: Simplify right side
    201,616.40x = 25,213,925,205.96
  5. Step 5: Solve for x
    x = 25,213,925,205.96/201,616.40
  6. Step 6: Final answer
    x = 125,058.90

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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.