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Finding the Fourth Proportional to 516,926.44, 775,388.70 and 161,967.64

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Solution

The fourth proportional to 516,926.44, 775,388.70 and 161,967.64 is: 242,951.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,926.44 : 775,388.70 = 161,967.64 : x
  2. Step 2: Convert to fraction form
    516,926.44/775,388.70 = 161,967.64/x
  3. Step 3: Cross multiply
    516,926.44x = 775,388.70 × 161,967.64
  4. Step 4: Simplify right side
    516,926.44x = 125,587,877,821.67
  5. Step 5: Solve for x
    x = 125,587,877,821.67/516,926.44
  6. Step 6: Final answer
    x = 242,951.16

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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.