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Finding the Fourth Proportional to 339,430.50, 468,428.67 and 188,527.50

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Solution

The fourth proportional to 339,430.50, 468,428.67 and 188,527.50 is: 260,176.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,430.50 : 468,428.67 = 188,527.50 : x
  2. Step 2: Convert to fraction form
    339,430.50/468,428.67 = 188,527.50/x
  3. Step 3: Cross multiply
    339,430.50x = 468,428.67 × 188,527.50
  4. Step 4: Simplify right side
    339,430.50x = 88,311,686,083.43
  5. Step 5: Solve for x
    x = 88,311,686,083.43/339,430.50
  6. Step 6: Final answer
    x = 260,176.05

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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.