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Finding the Fourth Proportional to 265,505.73, 398,051.28 and 181,056.56

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Solution

The fourth proportional to 265,505.73, 398,051.28 and 181,056.56 is: 271,443.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,505.73 : 398,051.28 = 181,056.56 : x
  2. Step 2: Convert to fraction form
    265,505.73/398,051.28 = 181,056.56/x
  3. Step 3: Cross multiply
    265,505.73x = 398,051.28 × 181,056.56
  4. Step 4: Simplify right side
    265,505.73x = 72,069,793,470.14
  5. Step 5: Solve for x
    x = 72,069,793,470.14/265,505.73
  6. Step 6: Final answer
    x = 271,443.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.