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Finding the Fourth Proportional to 192,800.40, 289,200.60 and 191,050.80

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Solution

The fourth proportional to 192,800.40, 289,200.60 and 191,050.80 is: 286,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,800.40 : 289,200.60 = 191,050.80 : x
  2. Step 2: Convert to fraction form
    192,800.40/289,200.60 = 191,050.80/x
  3. Step 3: Cross multiply
    192,800.40x = 289,200.60 × 191,050.80
  4. Step 4: Simplify right side
    192,800.40x = 55,252,005,990.48
  5. Step 5: Solve for x
    x = 55,252,005,990.48/192,800.40
  6. Step 6: Final answer
    x = 286,576.20

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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.