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Finding the Fourth Proportional to 211,486.49, 317,103.01 and 67,330.01

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Solution

The fourth proportional to 211,486.49, 317,103.01 and 67,330.01 is: 100,954.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,486.49 : 317,103.01 = 67,330.01 : x
  2. Step 2: Convert to fraction form
    211,486.49/317,103.01 = 67,330.01/x
  3. Step 3: Cross multiply
    211,486.49x = 317,103.01 × 67,330.01
  4. Step 4: Simplify right side
    211,486.49x = 21,350,548,522.11
  5. Step 5: Solve for x
    x = 21,350,548,522.11/211,486.49
  6. Step 6: Final answer
    x = 100,954.67

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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.