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Finding the Fourth Proportional to 169,586.58, 254,385.57 and 85,300.79

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Solution

The fourth proportional to 169,586.58, 254,385.57 and 85,300.79 is: 127,954.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,586.58 : 254,385.57 = 85,300.79 : x
  2. Step 2: Convert to fraction form
    169,586.58/254,385.57 = 85,300.79/x
  3. Step 3: Cross multiply
    169,586.58x = 254,385.57 × 85,300.79
  4. Step 4: Simplify right side
    169,586.58x = 21,699,288,813.67
  5. Step 5: Solve for x
    x = 21,699,288,813.67/169,586.58
  6. Step 6: Final answer
    x = 127,954.05

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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.