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Finding the Fourth Proportional to 133,343.30, 200,124.30 and 128,969.30

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Solution

The fourth proportional to 133,343.30, 200,124.30 and 128,969.30 is: 193,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,343.30 : 200,124.30 = 128,969.30 : x
  2. Step 2: Convert to fraction form
    133,343.30/200,124.30 = 128,969.30/x
  3. Step 3: Cross multiply
    133,343.30x = 200,124.30 × 128,969.30
  4. Step 4: Simplify right side
    133,343.30x = 25,809,890,883.99
  5. Step 5: Solve for x
    x = 25,809,890,883.99/133,343.30
  6. Step 6: Final answer
    x = 193,559.71

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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.