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Finding the Fourth Proportional to 217,041.67, 325,673.65 and 103,318.18

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Solution

The fourth proportional to 217,041.67, 325,673.65 and 103,318.18 is: 155,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,041.67 : 325,673.65 = 103,318.18 : x
  2. Step 2: Convert to fraction form
    217,041.67/325,673.65 = 103,318.18/x
  3. Step 3: Cross multiply
    217,041.67x = 325,673.65 × 103,318.18
  4. Step 4: Simplify right side
    217,041.67x = 33,648,008,791.96
  5. Step 5: Solve for x
    x = 33,648,008,791.96/217,041.67
  6. Step 6: Final answer
    x = 155,030.18

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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.