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Finding the Fourth Proportional to 119,628.40, 179,588.40 and 60,433.60

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Solution

The fourth proportional to 119,628.40, 179,588.40 and 60,433.60 is: 90,724.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,628.40 : 179,588.40 = 60,433.60 : x
  2. Step 2: Convert to fraction form
    119,628.40/179,588.40 = 60,433.60/x
  3. Step 3: Cross multiply
    119,628.40x = 179,588.40 × 60,433.60
  4. Step 4: Simplify right side
    119,628.40x = 10,853,173,530.24
  5. Step 5: Solve for x
    x = 10,853,173,530.24/119,628.40
  6. Step 6: Final answer
    x = 90,724.05

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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.