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Finding the Fourth Proportional to 189,193.50, 261,087.12 and 104,316.12

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Solution

The fourth proportional to 189,193.50, 261,087.12 and 104,316.12 is: 143,956.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,193.50 : 261,087.12 = 104,316.12 : x
  2. Step 2: Convert to fraction form
    189,193.50/261,087.12 = 104,316.12/x
  3. Step 3: Cross multiply
    189,193.50x = 261,087.12 × 104,316.12
  4. Step 4: Simplify right side
    189,193.50x = 27,235,595,340.37
  5. Step 5: Solve for x
    x = 27,235,595,340.37/189,193.50
  6. Step 6: Final answer
    x = 143,956.30

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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.