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Finding the Fourth Proportional to 194,446.80, 291,621.60 and 74,477.70

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Solution

The fourth proportional to 194,446.80, 291,621.60 and 74,477.70 is: 111,697.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,446.80 : 291,621.60 = 74,477.70 : x
  2. Step 2: Convert to fraction form
    194,446.80/291,621.60 = 74,477.70/x
  3. Step 3: Cross multiply
    194,446.80x = 291,621.60 × 74,477.70
  4. Step 4: Simplify right side
    194,446.80x = 21,719,306,038.32
  5. Step 5: Solve for x
    x = 21,719,306,038.32/194,446.80
  6. Step 6: Final answer
    x = 111,697.94

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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.