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Finding the Fourth Proportional to 255,638.01, 352,781.79 and 146,713.05

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Solution

The fourth proportional to 255,638.01, 352,781.79 and 146,713.05 is: 202,464.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,638.01 : 352,781.79 = 146,713.05 : x
  2. Step 2: Convert to fraction form
    255,638.01/352,781.79 = 146,713.05/x
  3. Step 3: Cross multiply
    255,638.01x = 352,781.79 × 146,713.05
  4. Step 4: Simplify right side
    255,638.01x = 51,757,692,395.36
  5. Step 5: Solve for x
    x = 51,757,692,395.36/255,638.01
  6. Step 6: Final answer
    x = 202,464.78

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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.