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Finding the Fourth Proportional to 218,303.38, 327,065.48 and 118,399.84

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Solution

The fourth proportional to 218,303.38, 327,065.48 and 118,399.84 is: 177,388.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,303.38 : 327,065.48 = 118,399.84 : x
  2. Step 2: Convert to fraction form
    218,303.38/327,065.48 = 118,399.84/x
  3. Step 3: Cross multiply
    218,303.38x = 327,065.48 × 118,399.84
  4. Step 4: Simplify right side
    218,303.38x = 38,724,500,501.52
  5. Step 5: Solve for x
    x = 38,724,500,501.52/218,303.38
  6. Step 6: Final answer
    x = 177,388.46

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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.