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Finding the Fourth Proportional to 169,969.35, 255,150.45 and 91,237.35

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Solution

The fourth proportional to 169,969.35, 255,150.45 and 91,237.35 is: 136,961.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,969.35 : 255,150.45 = 91,237.35 : x
  2. Step 2: Convert to fraction form
    169,969.35/255,150.45 = 91,237.35/x
  3. Step 3: Cross multiply
    169,969.35x = 255,150.45 × 91,237.35
  4. Step 4: Simplify right side
    169,969.35x = 23,279,250,909.31
  5. Step 5: Solve for x
    x = 23,279,250,909.31/169,969.35
  6. Step 6: Final answer
    x = 136,961.46

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1.5x scale

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.