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Finding the Fourth Proportional to 376,857.60, 565,286.40 and 166,905.60

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Solution

The fourth proportional to 376,857.60, 565,286.40 and 166,905.60 is: 250,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,857.60 : 565,286.40 = 166,905.60 : x
  2. Step 2: Convert to fraction form
    376,857.60/565,286.40 = 166,905.60/x
  3. Step 3: Cross multiply
    376,857.60x = 565,286.40 × 166,905.60
  4. Step 4: Simplify right side
    376,857.60x = 94,349,465,763.84
  5. Step 5: Solve for x
    x = 94,349,465,763.84/376,857.60
  6. Step 6: Final answer
    x = 250,358.40

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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.