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Finding the Fourth Proportional to 303,665.55, 455,455.49 and 166,931.27

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Solution

The fourth proportional to 303,665.55, 455,455.49 and 166,931.27 is: 250,373.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,665.55 : 455,455.49 = 166,931.27 : x
  2. Step 2: Convert to fraction form
    303,665.55/455,455.49 = 166,931.27/x
  3. Step 3: Cross multiply
    303,665.55x = 455,455.49 × 166,931.27
  4. Step 4: Simplify right side
    303,665.55x = 76,029,763,374.17
  5. Step 5: Solve for x
    x = 76,029,763,374.17/303,665.55
  6. Step 6: Final answer
    x = 250,373.36

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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.