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Finding the Fourth Proportional to 194,420.14, 291,630.21 and 61,313.85

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Solution

The fourth proportional to 194,420.14, 291,630.21 and 61,313.85 is: 91,970.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,420.14 : 291,630.21 = 61,313.85 : x
  2. Step 2: Convert to fraction form
    194,420.14/291,630.21 = 61,313.85/x
  3. Step 3: Cross multiply
    194,420.14x = 291,630.21 × 61,313.85
  4. Step 4: Simplify right side
    194,420.14x = 17,880,970,951.41
  5. Step 5: Solve for x
    x = 17,880,970,951.41/194,420.14
  6. Step 6: Final answer
    x = 91,970.78

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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.