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Finding the Fourth Proportional to 516,972.36, 775,458.94 and 162,013.94

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Solution

The fourth proportional to 516,972.36, 775,458.94 and 162,013.94 is: 243,021.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,972.36 : 775,458.94 = 162,013.94 : x
  2. Step 2: Convert to fraction form
    516,972.36/775,458.94 = 162,013.94/x
  3. Step 3: Cross multiply
    516,972.36x = 775,458.94 × 162,013.94
  4. Step 4: Simplify right side
    516,972.36x = 125,635,158,177.62
  5. Step 5: Solve for x
    x = 125,635,158,177.62/516,972.36
  6. Step 6: Final answer
    x = 243,021.04

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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.