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Finding the Fourth Proportional to 169,032.60, 253,180.45 and 84,645.59

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Solution

The fourth proportional to 169,032.60, 253,180.45 and 84,645.59 is: 126,783.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,032.60 : 253,180.45 = 84,645.59 : x
  2. Step 2: Convert to fraction form
    169,032.60/253,180.45 = 84,645.59/x
  3. Step 3: Cross multiply
    169,032.60x = 253,180.45 × 84,645.59
  4. Step 4: Simplify right side
    169,032.60x = 21,430,607,406.62
  5. Step 5: Solve for x
    x = 21,430,607,406.62/169,032.60
  6. Step 6: Final answer
    x = 126,783.87

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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.