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Finding the Fourth Proportional to 171,769.20, 257,653.80 and 101,612.40

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Solution

The fourth proportional to 171,769.20, 257,653.80 and 101,612.40 is: 152,418.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,769.20 : 257,653.80 = 101,612.40 : x
  2. Step 2: Convert to fraction form
    171,769.20/257,653.80 = 101,612.40/x
  3. Step 3: Cross multiply
    171,769.20x = 257,653.80 × 101,612.40
  4. Step 4: Simplify right side
    171,769.20x = 26,180,820,987.12
  5. Step 5: Solve for x
    x = 26,180,820,987.12/171,769.20
  6. Step 6: Final answer
    x = 152,418.60

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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.