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Finding the Fourth Proportional to 201,201.90, 301,610.85 and 74,808.30

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Solution

The fourth proportional to 201,201.90, 301,610.85 and 74,808.30 is: 112,141.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,201.90 : 301,610.85 = 74,808.30 : x
  2. Step 2: Convert to fraction form
    201,201.90/301,610.85 = 74,808.30/x
  3. Step 3: Cross multiply
    201,201.90x = 301,610.85 × 74,808.30
  4. Step 4: Simplify right side
    201,201.90x = 22,562,994,950.06
  5. Step 5: Solve for x
    x = 22,562,994,950.06/201,201.90
  6. Step 6: Final answer
    x = 112,141.06

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1.5x scale

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.