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Finding the Fourth Proportional to 346,871.87, 519,893.64 and 178,472.87

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Solution

The fourth proportional to 346,871.87, 519,893.64 and 178,472.87 is: 267,496.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,871.87 : 519,893.64 = 178,472.87 : x
  2. Step 2: Convert to fraction form
    346,871.87/519,893.64 = 178,472.87/x
  3. Step 3: Cross multiply
    346,871.87x = 519,893.64 × 178,472.87
  4. Step 4: Simplify right side
    346,871.87x = 92,786,909,375.68
  5. Step 5: Solve for x
    x = 92,786,909,375.68/346,871.87
  6. Step 6: Final answer
    x = 267,496.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.