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Finding the Fourth Proportional to 201,153.84, 301,697.56 and 66,219.67

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Solution

The fourth proportional to 201,153.84, 301,697.56 and 66,219.67 is: 99,318.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,153.84 : 301,697.56 = 66,219.67 : x
  2. Step 2: Convert to fraction form
    201,153.84/301,697.56 = 66,219.67/x
  3. Step 3: Cross multiply
    201,153.84x = 301,697.56 × 66,219.67
  4. Step 4: Simplify right side
    201,153.84x = 19,978,312,863.01
  5. Step 5: Solve for x
    x = 19,978,312,863.01/201,153.84
  6. Step 6: Final answer
    x = 99,318.58

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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.