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Finding the Fourth Proportional to 171,406.90, 257,110.35 and 167,907.70

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Solution

The fourth proportional to 171,406.90, 257,110.35 and 167,907.70 is: 251,861.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,406.90 : 257,110.35 = 167,907.70 : x
  2. Step 2: Convert to fraction form
    171,406.90/257,110.35 = 167,907.70/x
  3. Step 3: Cross multiply
    171,406.90x = 257,110.35 × 167,907.70
  4. Step 4: Simplify right side
    171,406.90x = 43,170,807,514.70
  5. Step 5: Solve for x
    x = 43,170,807,514.70/171,406.90
  6. Step 6: Final answer
    x = 251,861.55

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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.