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Finding the Fourth Proportional to 194,371.49, 290,898.90 and 119,539.10

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Solution

The fourth proportional to 194,371.49, 290,898.90 and 119,539.10 is: 178,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,371.49 : 290,898.90 = 119,539.10 : x
  2. Step 2: Convert to fraction form
    194,371.49/290,898.90 = 119,539.10/x
  3. Step 3: Cross multiply
    194,371.49x = 290,898.90 × 119,539.10
  4. Step 4: Simplify right side
    194,371.49x = 34,773,791,242.50
  5. Step 5: Solve for x
    x = 34,773,791,242.50/194,371.49
  6. Step 6: Final answer
    x = 178,903.77

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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.