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Finding the Fourth Proportional to 194,704.40, 292,056.60 and 128,219.60

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Solution

The fourth proportional to 194,704.40, 292,056.60 and 128,219.60 is: 192,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,704.40 : 292,056.60 = 128,219.60 : x
  2. Step 2: Convert to fraction form
    194,704.40/292,056.60 = 128,219.60/x
  3. Step 3: Cross multiply
    194,704.40x = 292,056.60 × 128,219.60
  4. Step 4: Simplify right side
    194,704.40x = 37,447,380,429.36
  5. Step 5: Solve for x
    x = 37,447,380,429.36/194,704.40
  6. Step 6: Final answer
    x = 192,329.40

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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.