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Finding the Fourth Proportional to 75,323.42, 103,945.80 and 41,789.42

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Solution

The fourth proportional to 75,323.42, 103,945.80 and 41,789.42 is: 57,669.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,323.42 : 103,945.80 = 41,789.42 : x
  2. Step 2: Convert to fraction form
    75,323.42/103,945.80 = 41,789.42/x
  3. Step 3: Cross multiply
    75,323.42x = 103,945.80 × 41,789.42
  4. Step 4: Simplify right side
    75,323.42x = 4,343,834,693.44
  5. Step 5: Solve for x
    x = 4,343,834,693.44/75,323.42
  6. Step 6: Final answer
    x = 57,669.11

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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.