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Finding the Fourth Proportional to 179,886.60, 269,927.10 and 74,716.20

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Solution

The fourth proportional to 179,886.60, 269,927.10 and 74,716.20 is: 112,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,886.60 : 269,927.10 = 74,716.20 : x
  2. Step 2: Convert to fraction form
    179,886.60/269,927.10 = 74,716.20/x
  3. Step 3: Cross multiply
    179,886.60x = 269,927.10 × 74,716.20
  4. Step 4: Simplify right side
    179,886.60x = 20,167,927,189.02
  5. Step 5: Solve for x
    x = 20,167,927,189.02/179,886.60
  6. Step 6: Final answer
    x = 112,114.67

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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.