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Finding the Fourth Proportional to 104,706.67, 144,548.72 and 80,779.63

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Solution

The fourth proportional to 104,706.67, 144,548.72 and 80,779.63 is: 111,517.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,706.67 : 144,548.72 = 80,779.63 : x
  2. Step 2: Convert to fraction form
    104,706.67/144,548.72 = 80,779.63/x
  3. Step 3: Cross multiply
    104,706.67x = 144,548.72 × 80,779.63
  4. Step 4: Simplify right side
    104,706.67x = 11,676,592,118.57
  5. Step 5: Solve for x
    x = 11,676,592,118.57/104,706.67
  6. Step 6: Final answer
    x = 111,517.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.