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Finding the Fourth Proportional to 167,903.40, 251,855.10 and 129,849.60

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Solution

The fourth proportional to 167,903.40, 251,855.10 and 129,849.60 is: 194,774.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,903.40 : 251,855.10 = 129,849.60 : x
  2. Step 2: Convert to fraction form
    167,903.40/251,855.10 = 129,849.60/x
  3. Step 3: Cross multiply
    167,903.40x = 251,855.10 × 129,849.60
  4. Step 4: Simplify right side
    167,903.40x = 32,703,283,992.96
  5. Step 5: Solve for x
    x = 32,703,283,992.96/167,903.40
  6. Step 6: Final answer
    x = 194,774.40

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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.