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Finding the Fourth Proportional to 194,644.60, 291,966.90 and 69,998.20

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Solution

The fourth proportional to 194,644.60, 291,966.90 and 69,998.20 is: 104,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,644.60 : 291,966.90 = 69,998.20 : x
  2. Step 2: Convert to fraction form
    194,644.60/291,966.90 = 69,998.20/x
  3. Step 3: Cross multiply
    194,644.60x = 291,966.90 × 69,998.20
  4. Step 4: Simplify right side
    194,644.60x = 20,437,157,459.58
  5. Step 5: Solve for x
    x = 20,437,157,459.58/194,644.60
  6. Step 6: Final answer
    x = 104,997.30

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Similar ratio
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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.