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Finding the Fourth Proportional to 235,764.18, 325,354.23 and 128,333.88

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Solution

The fourth proportional to 235,764.18, 325,354.23 and 128,333.88 is: 177,100.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,764.18 : 325,354.23 = 128,333.88 : x
  2. Step 2: Convert to fraction form
    235,764.18/325,354.23 = 128,333.88/x
  3. Step 3: Cross multiply
    235,764.18x = 325,354.23 × 128,333.88
  4. Step 4: Simplify right side
    235,764.18x = 41,753,970,710.31
  5. Step 5: Solve for x
    x = 41,753,970,710.31/235,764.18
  6. Step 6: Final answer
    x = 177,100.57

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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.