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Finding the Fourth Proportional to 111,415.80, 166,977.90 and 44,801.40

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Solution

The fourth proportional to 111,415.80, 166,977.90 and 44,801.40 is: 67,143.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,415.80 : 166,977.90 = 44,801.40 : x
  2. Step 2: Convert to fraction form
    111,415.80/166,977.90 = 44,801.40/x
  3. Step 3: Cross multiply
    111,415.80x = 166,977.90 × 44,801.40
  4. Step 4: Simplify right side
    111,415.80x = 7,480,843,689.06
  5. Step 5: Solve for x
    x = 7,480,843,689.06/111,415.80
  6. Step 6: Final answer
    x = 67,143.47

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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.