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Finding the Fourth Proportional to 134,698.80, 202,048.20 and 109,815.60

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Solution

The fourth proportional to 134,698.80, 202,048.20 and 109,815.60 is: 164,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,698.80 : 202,048.20 = 109,815.60 : x
  2. Step 2: Convert to fraction form
    134,698.80/202,048.20 = 109,815.60/x
  3. Step 3: Cross multiply
    134,698.80x = 202,048.20 × 109,815.60
  4. Step 4: Simplify right side
    134,698.80x = 22,188,044,311.92
  5. Step 5: Solve for x
    x = 22,188,044,311.92/134,698.80
  6. Step 6: Final answer
    x = 164,723.40

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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.