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Finding the Fourth Proportional to 186,729.34, 278,903.36 and 168,932.56

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Solution

The fourth proportional to 186,729.34, 278,903.36 and 168,932.56 is: 252,321.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,729.34 : 278,903.36 = 168,932.56 : x
  2. Step 2: Convert to fraction form
    186,729.34/278,903.36 = 168,932.56/x
  3. Step 3: Cross multiply
    186,729.34x = 278,903.36 × 168,932.56
  4. Step 4: Simplify right side
    186,729.34x = 47,115,858,597.40
  5. Step 5: Solve for x
    x = 47,115,858,597.40/186,729.34
  6. Step 6: Final answer
    x = 252,321.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.