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Finding the Fourth Proportional to 133,028.10, 186,705.90 and 133,028.10

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Solution

The fourth proportional to 133,028.10, 186,705.90 and 133,028.10 is: 186,705.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,028.10 : 186,705.90 = 133,028.10 : x
  2. Step 2: Convert to fraction form
    133,028.10/186,705.90 = 133,028.10/x
  3. Step 3: Cross multiply
    133,028.10x = 186,705.90 × 133,028.10
  4. Step 4: Simplify right side
    133,028.10x = 24,837,131,135.79
  5. Step 5: Solve for x
    x = 24,837,131,135.79/133,028.10
  6. Step 6: Final answer
    x = 186,705.90

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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.