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Finding the Fourth Proportional to 75,644.42, 104,388.42 and 41,652.20

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Solution

The fourth proportional to 75,644.42, 104,388.42 and 41,652.20 is: 57,479.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,644.42 : 104,388.42 = 41,652.20 : x
  2. Step 2: Convert to fraction form
    75,644.42/104,388.42 = 41,652.20/x
  3. Step 3: Cross multiply
    75,644.42x = 104,388.42 × 41,652.20
  4. Step 4: Simplify right side
    75,644.42x = 4,348,007,347.52
  5. Step 5: Solve for x
    x = 4,348,007,347.52/75,644.42
  6. Step 6: Final answer
    x = 57,479.55

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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.