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Finding the Fourth Proportional to 146,479, 202,162.60 and 92,769

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Solution

The fourth proportional to 146,479, 202,162.60 and 92,769 is: 128,034.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,479 : 202,162.60 = 92,769 : x
  2. Step 2: Convert to fraction form
    146,479/202,162.60 = 92,769/x
  3. Step 3: Cross multiply
    146,479x = 202,162.60 × 92,769
  4. Step 4: Simplify right side
    146,479x = 18,754,422,239.40
  5. Step 5: Solve for x
    x = 18,754,422,239.40/146,479
  6. Step 6: Final answer
    x = 128,034.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.