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Finding the Fourth Proportional to 236,058.48, 325,764.42 and 128,628.44

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Solution

The fourth proportional to 236,058.48, 325,764.42 and 128,628.44 is: 177,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,058.48 : 325,764.42 = 128,628.44 : x
  2. Step 2: Convert to fraction form
    236,058.48/325,764.42 = 128,628.44/x
  3. Step 3: Cross multiply
    236,058.48x = 325,764.42 × 128,628.44
  4. Step 4: Simplify right side
    236,058.48x = 41,902,569,152.10
  5. Step 5: Solve for x
    x = 41,902,569,152.10/236,058.48
  6. Step 6: Final answer
    x = 177,509.27

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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.