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Finding the Fourth Proportional to 339,803.40, 468,938.90 and 186,833.69

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Solution

The fourth proportional to 339,803.40, 468,938.90 and 186,833.69 is: 257,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,803.40 : 468,938.90 = 186,833.69 : x
  2. Step 2: Convert to fraction form
    339,803.40/468,938.90 = 186,833.69/x
  3. Step 3: Cross multiply
    339,803.40x = 468,938.90 × 186,833.69
  4. Step 4: Simplify right side
    339,803.40x = 87,613,584,952.45
  5. Step 5: Solve for x
    x = 87,613,584,952.45/339,803.40
  6. Step 6: Final answer
    x = 257,836.10

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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.