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Finding the Fourth Proportional to 171,036.45, 256,554.68 and 168,120.45

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Solution

The fourth proportional to 171,036.45, 256,554.68 and 168,120.45 is: 252,180.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,036.45 : 256,554.68 = 168,120.45 : x
  2. Step 2: Convert to fraction form
    171,036.45/256,554.68 = 168,120.45/x
  3. Step 3: Cross multiply
    171,036.45x = 256,554.68 × 168,120.45
  4. Step 4: Simplify right side
    171,036.45x = 43,132,087,410.60
  5. Step 5: Solve for x
    x = 43,132,087,410.60/171,036.45
  6. Step 6: Final answer
    x = 252,180.68

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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.