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Finding the Fourth Proportional to 338,719.77, 508,080.56 and 114,237.90

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Solution

The fourth proportional to 338,719.77, 508,080.56 and 114,237.90 is: 171,357.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,719.77 : 508,080.56 = 114,237.90 : x
  2. Step 2: Convert to fraction form
    338,719.77/508,080.56 = 114,237.90/x
  3. Step 3: Cross multiply
    338,719.77x = 508,080.56 × 114,237.90
  4. Step 4: Simplify right side
    338,719.77x = 58,042,055,634.03
  5. Step 5: Solve for x
    x = 58,042,055,634.03/338,719.77
  6. Step 6: Final answer
    x = 171,357.15

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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.