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Finding the Fourth Proportional to 194,612.10, 291,918.15 and 52,457.10

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Solution

The fourth proportional to 194,612.10, 291,918.15 and 52,457.10 is: 78,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,612.10 : 291,918.15 = 52,457.10 : x
  2. Step 2: Convert to fraction form
    194,612.10/291,918.15 = 52,457.10/x
  3. Step 3: Cross multiply
    194,612.10x = 291,918.15 × 52,457.10
  4. Step 4: Simplify right side
    194,612.10x = 15,313,179,586.37
  5. Step 5: Solve for x
    x = 15,313,179,586.37/194,612.10
  6. Step 6: Final answer
    x = 78,685.65

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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.