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Finding the Fourth Proportional to 162,891.40, 244,221.90 and 74,187.40

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Solution

The fourth proportional to 162,891.40, 244,221.90 and 74,187.40 is: 111,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,891.40 : 244,221.90 = 74,187.40 : x
  2. Step 2: Convert to fraction form
    162,891.40/244,221.90 = 74,187.40/x
  3. Step 3: Cross multiply
    162,891.40x = 244,221.90 × 74,187.40
  4. Step 4: Simplify right side
    162,891.40x = 18,118,187,784.06
  5. Step 5: Solve for x
    x = 18,118,187,784.06/162,891.40
  6. Step 6: Final answer
    x = 111,228.63

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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.