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Finding the Fourth Proportional to 174,719.80, 261,950.10 and 74,798.20

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Solution

The fourth proportional to 174,719.80, 261,950.10 and 74,798.20 is: 112,141.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,719.80 : 261,950.10 = 74,798.20 : x
  2. Step 2: Convert to fraction form
    174,719.80/261,950.10 = 74,798.20/x
  3. Step 3: Cross multiply
    174,719.80x = 261,950.10 × 74,798.20
  4. Step 4: Simplify right side
    174,719.80x = 19,593,395,969.82
  5. Step 5: Solve for x
    x = 19,593,395,969.82/174,719.80
  6. Step 6: Final answer
    x = 112,141.82

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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.