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Finding the Fourth Proportional to 516,885.63, 775,328.48 and 161,927.31

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Solution

The fourth proportional to 516,885.63, 775,328.48 and 161,927.31 is: 242,890.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,885.63 : 775,328.48 = 161,927.31 : x
  2. Step 2: Convert to fraction form
    516,885.63/775,328.48 = 161,927.31/x
  3. Step 3: Cross multiply
    516,885.63x = 775,328.48 × 161,927.31
  4. Step 4: Simplify right side
    516,885.63x = 125,546,855,132.79
  5. Step 5: Solve for x
    x = 125,546,855,132.79/516,885.63
  6. Step 6: Final answer
    x = 242,890.98

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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.