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Finding the Fourth Proportional to 127,353.99, 191,019.99 and 43,112.34

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Solution

The fourth proportional to 127,353.99, 191,019.99 and 43,112.34 is: 64,664.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,353.99 : 191,019.99 = 43,112.34 : x
  2. Step 2: Convert to fraction form
    127,353.99/191,019.99 = 43,112.34/x
  3. Step 3: Cross multiply
    127,353.99x = 191,019.99 × 43,112.34
  4. Step 4: Simplify right side
    127,353.99x = 8,235,318,755.68
  5. Step 5: Solve for x
    x = 8,235,318,755.68/127,353.99
  6. Step 6: Final answer
    x = 64,664.79

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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.