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Finding the Fourth Proportional to 141,706.80, 212,554.05 and 52,961.07

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Solution

The fourth proportional to 141,706.80, 212,554.05 and 52,961.07 is: 79,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,706.80 : 212,554.05 = 52,961.07 : x
  2. Step 2: Convert to fraction form
    141,706.80/212,554.05 = 52,961.07/x
  3. Step 3: Cross multiply
    141,706.80x = 212,554.05 × 52,961.07
  4. Step 4: Simplify right side
    141,706.80x = 11,257,089,920.83
  5. Step 5: Solve for x
    x = 11,257,089,920.83/141,706.80
  6. Step 6: Final answer
    x = 79,439.31

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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.