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Finding the Fourth Proportional to 201,209.80, 301,705.35 and 82,893.10

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Solution

The fourth proportional to 201,209.80, 301,705.35 and 82,893.10 is: 124,294.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,209.80 : 301,705.35 = 82,893.10 : x
  2. Step 2: Convert to fraction form
    201,209.80/301,705.35 = 82,893.10/x
  3. Step 3: Cross multiply
    201,209.80x = 301,705.35 × 82,893.10
  4. Step 4: Simplify right side
    201,209.80x = 25,009,291,748.09
  5. Step 5: Solve for x
    x = 25,009,291,748.09/201,209.80
  6. Step 6: Final answer
    x = 124,294.60

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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.