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Finding the Fourth Proportional to 201,081.87, 301,659.89 and 66,153.53

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Solution

The fourth proportional to 201,081.87, 301,659.89 and 66,153.53 is: 99,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,081.87 : 301,659.89 = 66,153.53 : x
  2. Step 2: Convert to fraction form
    201,081.87/301,659.89 = 66,153.53/x
  3. Step 3: Cross multiply
    201,081.87x = 301,659.89 × 66,153.53
  4. Step 4: Simplify right side
    201,081.87x = 19,955,867,006.29
  5. Step 5: Solve for x
    x = 19,955,867,006.29/201,081.87
  6. Step 6: Final answer
    x = 99,242.50

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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.