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Finding the Fourth Proportional to 171,165.20, 256,056.60 and 148,048.40

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Solution

The fourth proportional to 171,165.20, 256,056.60 and 148,048.40 is: 221,474.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,165.20 : 256,056.60 = 148,048.40 : x
  2. Step 2: Convert to fraction form
    171,165.20/256,056.60 = 148,048.40/x
  3. Step 3: Cross multiply
    171,165.20x = 256,056.60 × 148,048.40
  4. Step 4: Simplify right side
    171,165.20x = 37,908,769,939.44
  5. Step 5: Solve for x
    x = 37,908,769,939.44/171,165.20
  6. Step 6: Final answer
    x = 221,474.75

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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.