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Finding the Fourth Proportional to 167,907.90, 251,861.85 and 55,605.45

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Solution

The fourth proportional to 167,907.90, 251,861.85 and 55,605.45 is: 83,408.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,907.90 : 251,861.85 = 55,605.45 : x
  2. Step 2: Convert to fraction form
    167,907.90/251,861.85 = 55,605.45/x
  3. Step 3: Cross multiply
    167,907.90x = 251,861.85 × 55,605.45
  4. Step 4: Simplify right side
    167,907.90x = 14,004,891,507.08
  5. Step 5: Solve for x
    x = 14,004,891,507.08/167,907.90
  6. Step 6: Final answer
    x = 83,408.18

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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.