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Finding the Fourth Proportional to 255,012.96, 351,720.18 and 164,383.68

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Solution

The fourth proportional to 255,012.96, 351,720.18 and 164,383.68 is: 226,722.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,012.96 : 351,720.18 = 164,383.68 : x
  2. Step 2: Convert to fraction form
    255,012.96/351,720.18 = 164,383.68/x
  3. Step 3: Cross multiply
    255,012.96x = 351,720.18 × 164,383.68
  4. Step 4: Simplify right side
    255,012.96x = 57,817,057,518.66
  5. Step 5: Solve for x
    x = 57,817,057,518.66/255,012.96
  6. Step 6: Final answer
    x = 226,722.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.