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Finding the Fourth Proportional to 339,468.79, 468,474.75 and 186,516.53

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Solution

The fourth proportional to 339,468.79, 468,474.75 and 186,516.53 is: 257,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,468.79 : 468,474.75 = 186,516.53 : x
  2. Step 2: Convert to fraction form
    339,468.79/468,474.75 = 186,516.53/x
  3. Step 3: Cross multiply
    339,468.79x = 468,474.75 × 186,516.53
  4. Step 4: Simplify right side
    339,468.79x = 87,378,284,762.62
  5. Step 5: Solve for x
    x = 87,378,284,762.62/339,468.79
  6. Step 6: Final answer
    x = 257,397.11

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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.