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Finding the Fourth Proportional to 74,241.63, 111,362.45 and 21,655.35

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Solution

The fourth proportional to 74,241.63, 111,362.45 and 21,655.35 is: 32,483.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,241.63 : 111,362.45 = 21,655.35 : x
  2. Step 2: Convert to fraction form
    74,241.63/111,362.45 = 21,655.35/x
  3. Step 3: Cross multiply
    74,241.63x = 111,362.45 × 21,655.35
  4. Step 4: Simplify right side
    74,241.63x = 2,411,592,723.33
  5. Step 5: Solve for x
    x = 2,411,592,723.33/74,241.63
  6. Step 6: Final answer
    x = 32,483.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.