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Finding the Fourth Proportional to 194,626.32, 291,809.88 and 69,951.12

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Solution

The fourth proportional to 194,626.32, 291,809.88 and 69,951.12 is: 104,880.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,626.32 : 291,809.88 = 69,951.12 : x
  2. Step 2: Convert to fraction form
    194,626.32/291,809.88 = 69,951.12/x
  3. Step 3: Cross multiply
    194,626.32x = 291,809.88 × 69,951.12
  4. Step 4: Simplify right side
    194,626.32x = 20,412,427,933.07
  5. Step 5: Solve for x
    x = 20,412,427,933.07/194,626.32
  6. Step 6: Final answer
    x = 104,880.10

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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.