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Finding the Fourth Proportional to 258,638.63, 357,085.26 and 177,103.31

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Solution

The fourth proportional to 258,638.63, 357,085.26 and 177,103.31 is: 244,514.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,638.63 : 357,085.26 = 177,103.31 : x
  2. Step 2: Convert to fraction form
    258,638.63/357,085.26 = 177,103.31/x
  3. Step 3: Cross multiply
    258,638.63x = 357,085.26 × 177,103.31
  4. Step 4: Simplify right side
    258,638.63x = 63,240,979,712.78
  5. Step 5: Solve for x
    x = 63,240,979,712.78/258,638.63
  6. Step 6: Final answer
    x = 244,514.83

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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.