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Finding the Fourth Proportional to 120,348.94, 166,068.48 and 66,625.42

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Solution

The fourth proportional to 120,348.94, 166,068.48 and 66,625.42 is: 91,935.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.94 : 166,068.48 = 66,625.42 : x
  2. Step 2: Convert to fraction form
    120,348.94/166,068.48 = 66,625.42/x
  3. Step 3: Cross multiply
    120,348.94x = 166,068.48 × 66,625.42
  4. Step 4: Simplify right side
    120,348.94x = 11,064,382,228.76
  5. Step 5: Solve for x
    x = 11,064,382,228.76/120,348.94
  6. Step 6: Final answer
    x = 91,935.85

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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.