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Finding the Fourth Proportional to 194,162.70, 291,244.05 and 69,458.70

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Solution

The fourth proportional to 194,162.70, 291,244.05 and 69,458.70 is: 104,188.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,162.70 : 291,244.05 = 69,458.70 : x
  2. Step 2: Convert to fraction form
    194,162.70/291,244.05 = 69,458.70/x
  3. Step 3: Cross multiply
    194,162.70x = 291,244.05 × 69,458.70
  4. Step 4: Simplify right side
    194,162.70x = 20,229,433,095.74
  5. Step 5: Solve for x
    x = 20,229,433,095.74/194,162.70
  6. Step 6: Final answer
    x = 104,188.05

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1.5x scale

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.