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Finding the Fourth Proportional to 171,162.20, 256,052.10 and 148,045.40

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Solution

The fourth proportional to 171,162.20, 256,052.10 and 148,045.40 is: 221,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,162.20 : 256,052.10 = 148,045.40 : x
  2. Step 2: Convert to fraction form
    171,162.20/256,052.10 = 148,045.40/x
  3. Step 3: Cross multiply
    171,162.20x = 256,052.10 × 148,045.40
  4. Step 4: Simplify right side
    171,162.20x = 37,907,335,565.34
  5. Step 5: Solve for x
    x = 37,907,335,565.34/171,162.20
  6. Step 6: Final answer
    x = 221,470.25

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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.