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Finding the Fourth Proportional to 169,663.20, 254,523.60 and 51,333.60

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Solution

The fourth proportional to 169,663.20, 254,523.60 and 51,333.60 is: 77,009.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,663.20 : 254,523.60 = 51,333.60 : x
  2. Step 2: Convert to fraction form
    169,663.20/254,523.60 = 51,333.60/x
  3. Step 3: Cross multiply
    169,663.20x = 254,523.60 × 51,333.60
  4. Step 4: Simplify right side
    169,663.20x = 13,065,612,672.96
  5. Step 5: Solve for x
    x = 13,065,612,672.96/169,663.20
  6. Step 6: Final answer
    x = 77,009.11

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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.