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Finding the Fourth Proportional to 113,996.64, 170,994.92 and 30,890.64

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Solution

The fourth proportional to 113,996.64, 170,994.92 and 30,890.64 is: 46,335.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,996.64 : 170,994.92 = 30,890.64 : x
  2. Step 2: Convert to fraction form
    113,996.64/170,994.92 = 30,890.64/x
  3. Step 3: Cross multiply
    113,996.64x = 170,994.92 × 30,890.64
  4. Step 4: Simplify right side
    113,996.64x = 5,282,142,515.55
  5. Step 5: Solve for x
    x = 5,282,142,515.55/113,996.64
  6. Step 6: Final answer
    x = 46,335.95

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1.5x scale

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.