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Finding the Fourth Proportional to 339,812.84, 468,953.75 and 186,862.64

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Solution

The fourth proportional to 339,812.84, 468,953.75 and 186,862.64 is: 257,877.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,812.84 : 468,953.75 = 186,862.64 : x
  2. Step 2: Convert to fraction form
    339,812.84/468,953.75 = 186,862.64/x
  3. Step 3: Cross multiply
    339,812.84x = 468,953.75 × 186,862.64
  4. Step 4: Simplify right side
    339,812.84x = 87,629,933,885.29
  5. Step 5: Solve for x
    x = 87,629,933,885.29/339,812.84
  6. Step 6: Final answer
    x = 257,877.05

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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.