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Finding the Fourth Proportional to 194,457.80, 291,225.90 and 119,808.20

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Solution

The fourth proportional to 194,457.80, 291,225.90 and 119,808.20 is: 179,428.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,457.80 : 291,225.90 = 119,808.20 : x
  2. Step 2: Convert to fraction form
    194,457.80/291,225.90 = 119,808.20/x
  3. Step 3: Cross multiply
    194,457.80x = 291,225.90 × 119,808.20
  4. Step 4: Simplify right side
    194,457.80x = 34,891,250,872.38
  5. Step 5: Solve for x
    x = 34,891,250,872.38/194,457.80
  6. Step 6: Final answer
    x = 179,428.39

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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.