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Finding the Fourth Proportional to 189,800.96, 261,914.88 and 104,912.48

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Solution

The fourth proportional to 189,800.96, 261,914.88 and 104,912.48 is: 144,773.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,800.96 : 261,914.88 = 104,912.48 : x
  2. Step 2: Convert to fraction form
    189,800.96/261,914.88 = 104,912.48/x
  3. Step 3: Cross multiply
    189,800.96x = 261,914.88 × 104,912.48
  4. Step 4: Simplify right side
    189,800.96x = 27,478,139,609.70
  5. Step 5: Solve for x
    x = 27,478,139,609.70/189,800.96
  6. Step 6: Final answer
    x = 144,773.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.