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Finding the Fourth Proportional to 132,904.56, 199,322.88 and 39,388.48

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Solution

The fourth proportional to 132,904.56, 199,322.88 and 39,388.48 is: 59,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,904.56 : 199,322.88 = 39,388.48 : x
  2. Step 2: Convert to fraction form
    132,904.56/199,322.88 = 39,388.48/x
  3. Step 3: Cross multiply
    132,904.56x = 199,322.88 × 39,388.48
  4. Step 4: Simplify right side
    132,904.56x = 7,851,025,272.42
  5. Step 5: Solve for x
    x = 7,851,025,272.42/132,904.56
  6. Step 6: Final answer
    x = 59,072.66

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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.