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Finding the Fourth Proportional to 133,231.20, 186,290.40 and 133,231.20

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Solution

The fourth proportional to 133,231.20, 186,290.40 and 133,231.20 is: 186,290.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,231.20 : 186,290.40 = 133,231.20 : x
  2. Step 2: Convert to fraction form
    133,231.20/186,290.40 = 133,231.20/x
  3. Step 3: Cross multiply
    133,231.20x = 186,290.40 × 133,231.20
  4. Step 4: Simplify right side
    133,231.20x = 24,819,693,540.48
  5. Step 5: Solve for x
    x = 24,819,693,540.48/133,231.20
  6. Step 6: Final answer
    x = 186,290.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.