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Finding the Fourth Proportional to 119,771.28, 179,459.88 and 94,970.64

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Solution

The fourth proportional to 119,771.28, 179,459.88 and 94,970.64 is: 142,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,771.28 : 179,459.88 = 94,970.64 : x
  2. Step 2: Convert to fraction form
    119,771.28/179,459.88 = 94,970.64/x
  3. Step 3: Cross multiply
    119,771.28x = 179,459.88 × 94,970.64
  4. Step 4: Simplify right side
    119,771.28x = 17,043,419,657.92
  5. Step 5: Solve for x
    x = 17,043,419,657.92/119,771.28
  6. Step 6: Final answer
    x = 142,299.72

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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.