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Finding the Fourth Proportional to 163,674, 245,568.60 and 80,626.32

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Solution

The fourth proportional to 163,674, 245,568.60 and 80,626.32 is: 120,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,674 : 245,568.60 = 80,626.32 : x
  2. Step 2: Convert to fraction form
    163,674/245,568.60 = 80,626.32/x
  3. Step 3: Cross multiply
    163,674x = 245,568.60 × 80,626.32
  4. Step 4: Simplify right side
    163,674x = 19,799,292,525.55
  5. Step 5: Solve for x
    x = 19,799,292,525.55/163,674
  6. Step 6: Final answer
    x = 120,967.85

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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.