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Finding the Fourth Proportional to 252,090.91, 347,885.49 and 137,369.60

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Solution

The fourth proportional to 252,090.91, 347,885.49 and 137,369.60 is: 189,570.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,090.91 : 347,885.49 = 137,369.60 : x
  2. Step 2: Convert to fraction form
    252,090.91/347,885.49 = 137,369.60/x
  3. Step 3: Cross multiply
    252,090.91x = 347,885.49 × 137,369.60
  4. Step 4: Simplify right side
    252,090.91x = 47,788,889,322.60
  5. Step 5: Solve for x
    x = 47,788,889,322.60/252,090.91
  6. Step 6: Final answer
    x = 189,570.06

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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.