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Finding the Fourth Proportional to 75,779.50, 104,573.30 and 41,789.42

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Solution

The fourth proportional to 75,779.50, 104,573.30 and 41,789.42 is: 57,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,779.50 : 104,573.30 = 41,789.42 : x
  2. Step 2: Convert to fraction form
    75,779.50/104,573.30 = 41,789.42/x
  3. Step 3: Cross multiply
    75,779.50x = 104,573.30 × 41,789.42
  4. Step 4: Simplify right side
    75,779.50x = 4,370,057,567.42
  5. Step 5: Solve for x
    x = 4,370,057,567.42/75,779.50
  6. Step 6: Final answer
    x = 57,668.07

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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.