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Finding the Fourth Proportional to 235,996.02, 325,663.29 and 128,565.54

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Solution

The fourth proportional to 235,996.02, 325,663.29 and 128,565.54 is: 177,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,996.02 : 325,663.29 = 128,565.54 : x
  2. Step 2: Convert to fraction form
    235,996.02/325,663.29 = 128,565.54/x
  3. Step 3: Cross multiply
    235,996.02x = 325,663.29 × 128,565.54
  4. Step 4: Simplify right side
    235,996.02x = 41,869,076,737.03
  5. Step 5: Solve for x
    x = 41,869,076,737.03/235,996.02
  6. Step 6: Final answer
    x = 177,414.33

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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.