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Finding the Fourth Proportional to 339,156.89, 468,041.99 and 186,209.18

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Solution

The fourth proportional to 339,156.89, 468,041.99 and 186,209.18 is: 256,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,156.89 : 468,041.99 = 186,209.18 : x
  2. Step 2: Convert to fraction form
    339,156.89/468,041.99 = 186,209.18/x
  3. Step 3: Cross multiply
    339,156.89x = 468,041.99 × 186,209.18
  4. Step 4: Simplify right side
    339,156.89x = 87,153,713,288.78
  5. Step 5: Solve for x
    x = 87,153,713,288.78/339,156.89
  6. Step 6: Final answer
    x = 256,971.68

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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.