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Finding the Fourth Proportional to 162,741.80, 244,112.70 and 84,009.80

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Solution

The fourth proportional to 162,741.80, 244,112.70 and 84,009.80 is: 126,014.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,741.80 : 244,112.70 = 84,009.80 : x
  2. Step 2: Convert to fraction form
    162,741.80/244,112.70 = 84,009.80/x
  3. Step 3: Cross multiply
    162,741.80x = 244,112.70 × 84,009.80
  4. Step 4: Simplify right side
    162,741.80x = 20,507,859,104.46
  5. Step 5: Solve for x
    x = 20,507,859,104.46/162,741.80
  6. Step 6: Final answer
    x = 126,014.70

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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.