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Finding the Fourth Proportional to 339,860.84, 468,998.01 and 186,898.86

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Solution

The fourth proportional to 339,860.84, 468,998.01 and 186,898.86 is: 257,914.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,860.84 : 468,998.01 = 186,898.86 : x
  2. Step 2: Convert to fraction form
    339,860.84/468,998.01 = 186,898.86/x
  3. Step 3: Cross multiply
    339,860.84x = 468,998.01 × 186,898.86
  4. Step 4: Simplify right side
    339,860.84x = 87,655,193,411.27
  5. Step 5: Solve for x
    x = 87,655,193,411.27/339,860.84
  6. Step 6: Final answer
    x = 257,914.96

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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.