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Finding the Fourth Proportional to 141,471.72, 212,207.62 and 36,290.68

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Solution

The fourth proportional to 141,471.72, 212,207.62 and 36,290.68 is: 54,436.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,471.72 : 212,207.62 = 36,290.68 : x
  2. Step 2: Convert to fraction form
    141,471.72/212,207.62 = 36,290.68/x
  3. Step 3: Cross multiply
    141,471.72x = 212,207.62 × 36,290.68
  4. Step 4: Simplify right side
    141,471.72x = 7,701,158,830.98
  5. Step 5: Solve for x
    x = 7,701,158,830.98/141,471.72
  6. Step 6: Final answer
    x = 54,436.03

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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.