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Finding the Fourth Proportional to 168,276.65, 231,749.32 and 164,602.49

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Solution

The fourth proportional to 168,276.65, 231,749.32 and 164,602.49 is: 226,689.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,276.65 : 231,749.32 = 164,602.49 : x
  2. Step 2: Convert to fraction form
    168,276.65/231,749.32 = 164,602.49/x
  3. Step 3: Cross multiply
    168,276.65x = 231,749.32 × 164,602.49
  4. Step 4: Simplify right side
    168,276.65x = 38,146,515,127.81
  5. Step 5: Solve for x
    x = 38,146,515,127.81/168,276.65
  6. Step 6: Final answer
    x = 226,689.29

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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.