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Finding the Fourth Proportional to 72,895.74, 100,578.42 and 41,064.60

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Solution

The fourth proportional to 72,895.74, 100,578.42 and 41,064.60 is: 56,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,895.74 : 100,578.42 = 41,064.60 : x
  2. Step 2: Convert to fraction form
    72,895.74/100,578.42 = 41,064.60/x
  3. Step 3: Cross multiply
    72,895.74x = 100,578.42 × 41,064.60
  4. Step 4: Simplify right side
    72,895.74x = 4,130,212,585.93
  5. Step 5: Solve for x
    x = 4,130,212,585.93/72,895.74
  6. Step 6: Final answer
    x = 56,659.18

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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.