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Finding the Fourth Proportional to 194,482.80, 291,335.40 and 111,279.60

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Solution

The fourth proportional to 194,482.80, 291,335.40 and 111,279.60 is: 166,696.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,482.80 : 291,335.40 = 111,279.60 : x
  2. Step 2: Convert to fraction form
    194,482.80/291,335.40 = 111,279.60/x
  3. Step 3: Cross multiply
    194,482.80x = 291,335.40 × 111,279.60
  4. Step 4: Simplify right side
    194,482.80x = 32,419,686,777.84
  5. Step 5: Solve for x
    x = 32,419,686,777.84/194,482.80
  6. Step 6: Final answer
    x = 166,696.94

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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.