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Finding the Fourth Proportional to 182,538.76, 251,809.14 and 115,509.64

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Solution

The fourth proportional to 182,538.76, 251,809.14 and 115,509.64 is: 159,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,538.76 : 251,809.14 = 115,509.64 : x
  2. Step 2: Convert to fraction form
    182,538.76/251,809.14 = 115,509.64/x
  3. Step 3: Cross multiply
    182,538.76x = 251,809.14 × 115,509.64
  4. Step 4: Simplify right side
    182,538.76x = 29,086,383,110.11
  5. Step 5: Solve for x
    x = 29,086,383,110.11/182,538.76
  6. Step 6: Final answer
    x = 159,343.60

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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.