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Finding the Fourth Proportional to 115,808.56, 173,734.72 and 39,886.88

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Solution

The fourth proportional to 115,808.56, 173,734.72 and 39,886.88 is: 59,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,808.56 : 173,734.72 = 39,886.88 : x
  2. Step 2: Convert to fraction form
    115,808.56/173,734.72 = 39,886.88/x
  3. Step 3: Cross multiply
    115,808.56x = 173,734.72 × 39,886.88
  4. Step 4: Simplify right side
    115,808.56x = 6,929,735,928.47
  5. Step 5: Solve for x
    x = 6,929,735,928.47/115,808.56
  6. Step 6: Final answer
    x = 59,837.86

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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.