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Finding the Fourth Proportional to 267,573.63, 401,419.48 and 78,048.82

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Solution

The fourth proportional to 267,573.63, 401,419.48 and 78,048.82 is: 117,090.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,573.63 : 401,419.48 = 78,048.82 : x
  2. Step 2: Convert to fraction form
    267,573.63/401,419.48 = 78,048.82/x
  3. Step 3: Cross multiply
    267,573.63x = 401,419.48 × 78,048.82
  4. Step 4: Simplify right side
    267,573.63x = 31,330,318,321.00
  5. Step 5: Solve for x
    x = 31,330,318,321.00/267,573.63
  6. Step 6: Final answer
    x = 117,090.46

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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.