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Finding the Fourth Proportional to 163,584.35, 245,201.56 and 74,704.67

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Solution

The fourth proportional to 163,584.35, 245,201.56 and 74,704.67 is: 111,977.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,584.35 : 245,201.56 = 74,704.67 : x
  2. Step 2: Convert to fraction form
    163,584.35/245,201.56 = 74,704.67/x
  3. Step 3: Cross multiply
    163,584.35x = 245,201.56 × 74,704.67
  4. Step 4: Simplify right side
    163,584.35x = 18,317,700,210.52
  5. Step 5: Solve for x
    x = 18,317,700,210.52/163,584.35
  6. Step 6: Final answer
    x = 111,977.10

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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.