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Finding the Fourth Proportional to 339,812.60, 468,953.40 and 186,862.38

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Solution

The fourth proportional to 339,812.60, 468,953.40 and 186,862.38 is: 257,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,812.60 : 468,953.40 = 186,862.38 : x
  2. Step 2: Convert to fraction form
    339,812.60/468,953.40 = 186,862.38/x
  3. Step 3: Cross multiply
    339,812.60x = 468,953.40 × 186,862.38
  4. Step 4: Simplify right side
    339,812.60x = 87,629,748,433.09
  5. Step 5: Solve for x
    x = 87,629,748,433.09/339,812.60
  6. Step 6: Final answer
    x = 257,876.69

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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.