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Finding the Fourth Proportional to 201,209.71, 301,626.96 and 67,996.81

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Solution

The fourth proportional to 201,209.71, 301,626.96 and 67,996.81 is: 101,931.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,209.71 : 301,626.96 = 67,996.81 : x
  2. Step 2: Convert to fraction form
    201,209.71/301,626.96 = 67,996.81/x
  3. Step 3: Cross multiply
    201,209.71x = 301,626.96 × 67,996.81
  4. Step 4: Simplify right side
    201,209.71x = 20,509,671,090.00
  5. Step 5: Solve for x
    x = 20,509,671,090.00/201,209.71
  6. Step 6: Final answer
    x = 101,931.82

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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.