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Finding the Fourth Proportional to 104,843.56, 144,686.70 and 57,099.49

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Solution

The fourth proportional to 104,843.56, 144,686.70 and 57,099.49 is: 78,798.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,843.56 : 144,686.70 = 57,099.49 : x
  2. Step 2: Convert to fraction form
    104,843.56/144,686.70 = 57,099.49/x
  3. Step 3: Cross multiply
    104,843.56x = 144,686.70 × 57,099.49
  4. Step 4: Simplify right side
    104,843.56x = 8,261,536,779.78
  5. Step 5: Solve for x
    x = 8,261,536,779.78/104,843.56
  6. Step 6: Final answer
    x = 78,798.71

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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.