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Finding the Fourth Proportional to 169,644.60, 254,390.10 and 64,428.60

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Solution

The fourth proportional to 169,644.60, 254,390.10 and 64,428.60 is: 96,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,644.60 : 254,390.10 = 64,428.60 : x
  2. Step 2: Convert to fraction form
    169,644.60/254,390.10 = 64,428.60/x
  3. Step 3: Cross multiply
    169,644.60x = 254,390.10 × 64,428.60
  4. Step 4: Simplify right side
    169,644.60x = 16,389,997,996.86
  5. Step 5: Solve for x
    x = 16,389,997,996.86/169,644.60
  6. Step 6: Final answer
    x = 96,613.73

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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.