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Finding the Fourth Proportional to 133,328.40, 200,021.40 and 39,843.60

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Solution

The fourth proportional to 133,328.40, 200,021.40 and 39,843.60 is: 59,774.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,328.40 : 200,021.40 = 39,843.60 : x
  2. Step 2: Convert to fraction form
    133,328.40/200,021.40 = 39,843.60/x
  3. Step 3: Cross multiply
    133,328.40x = 200,021.40 × 39,843.60
  4. Step 4: Simplify right side
    133,328.40x = 7,969,572,653.04
  5. Step 5: Solve for x
    x = 7,969,572,653.04/133,328.40
  6. Step 6: Final answer
    x = 59,774.01

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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.