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Finding the Fourth Proportional to 236,076.48, 325,789.20 and 128,646.48

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Solution

The fourth proportional to 236,076.48, 325,789.20 and 128,646.48 is: 177,534.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,076.48 : 325,789.20 = 128,646.48 : x
  2. Step 2: Convert to fraction form
    236,076.48/325,789.20 = 128,646.48/x
  3. Step 3: Cross multiply
    236,076.48x = 325,789.20 × 128,646.48
  4. Step 4: Simplify right side
    236,076.48x = 41,911,633,802.02
  5. Step 5: Solve for x
    x = 41,911,633,802.02/236,076.48
  6. Step 6: Final answer
    x = 177,534.14

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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.