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Finding the Fourth Proportional to 72,855.37, 100,549.99 and 41,030.49

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Solution

The fourth proportional to 72,855.37, 100,549.99 and 41,030.49 is: 56,627.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,855.37 : 100,549.99 = 41,030.49 : x
  2. Step 2: Convert to fraction form
    72,855.37/100,549.99 = 41,030.49/x
  3. Step 3: Cross multiply
    72,855.37x = 100,549.99 × 41,030.49
  4. Step 4: Simplify right side
    72,855.37x = 4,125,615,154.04
  5. Step 5: Solve for x
    x = 4,125,615,154.04/72,855.37
  6. Step 6: Final answer
    x = 56,627.47

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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.