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Finding the Fourth Proportional to 53,161.70, 79,742.66 and 36,471.13

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Solution

The fourth proportional to 53,161.70, 79,742.66 and 36,471.13 is: 54,706.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,161.70 : 79,742.66 = 36,471.13 : x
  2. Step 2: Convert to fraction form
    53,161.70/79,742.66 = 36,471.13/x
  3. Step 3: Cross multiply
    53,161.70x = 79,742.66 × 36,471.13
  4. Step 4: Simplify right side
    53,161.70x = 2,908,304,537.69
  5. Step 5: Solve for x
    x = 2,908,304,537.69/53,161.70
  6. Step 6: Final answer
    x = 54,706.77

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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.