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Finding the Fourth Proportional to 201,152.84, 301,696.07 and 66,218.67

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Solution

The fourth proportional to 201,152.84, 301,696.07 and 66,218.67 is: 99,317.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,152.84 : 301,696.07 = 66,218.67 : x
  2. Step 2: Convert to fraction form
    201,152.84/301,696.07 = 66,218.67/x
  3. Step 3: Cross multiply
    201,152.84x = 301,696.07 × 66,218.67
  4. Step 4: Simplify right side
    201,152.84x = 19,977,912,168.53
  5. Step 5: Solve for x
    x = 19,977,912,168.53/201,152.84
  6. Step 6: Final answer
    x = 99,317.08

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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.