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Finding the Fourth Proportional to 169,636.60, 254,378.10 and 64,420.60

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Solution

The fourth proportional to 169,636.60, 254,378.10 and 64,420.60 is: 96,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,636.60 : 254,378.10 = 64,420.60 : x
  2. Step 2: Convert to fraction form
    169,636.60/254,378.10 = 64,420.60/x
  3. Step 3: Cross multiply
    169,636.60x = 254,378.10 × 64,420.60
  4. Step 4: Simplify right side
    169,636.60x = 16,387,189,828.86
  5. Step 5: Solve for x
    x = 16,387,189,828.86/169,636.60
  6. Step 6: Final answer
    x = 96,601.73

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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.