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Finding the Fourth Proportional to 120,937.99, 166,907.98 and 67,228.11

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Solution

The fourth proportional to 120,937.99, 166,907.98 and 67,228.11 is: 92,782.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,937.99 : 166,907.98 = 67,228.11 : x
  2. Step 2: Convert to fraction form
    120,937.99/166,907.98 = 67,228.11/x
  3. Step 3: Cross multiply
    120,937.99x = 166,907.98 × 67,228.11
  4. Step 4: Simplify right side
    120,937.99x = 11,220,908,039.32
  5. Step 5: Solve for x
    x = 11,220,908,039.32/120,937.99
  6. Step 6: Final answer
    x = 92,782.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.