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Finding the Fourth Proportional to 169,619.39, 255,648.29 and 146,209.48

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Solution

The fourth proportional to 169,619.39, 255,648.29 and 146,209.48 is: 220,365.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,619.39 : 255,648.29 = 146,209.48 : x
  2. Step 2: Convert to fraction form
    169,619.39/255,648.29 = 146,209.48/x
  3. Step 3: Cross multiply
    169,619.39x = 255,648.29 × 146,209.48
  4. Step 4: Simplify right side
    169,619.39x = 37,378,203,543.79
  5. Step 5: Solve for x
    x = 37,378,203,543.79/169,619.39
  6. Step 6: Final answer
    x = 220,365.16

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.