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Finding the Fourth Proportional to 307,991.08, 425,034.66 and 180,758.44

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Solution

The fourth proportional to 307,991.08, 425,034.66 and 180,758.44 is: 249,450.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,991.08 : 425,034.66 = 180,758.44 : x
  2. Step 2: Convert to fraction form
    307,991.08/425,034.66 = 180,758.44/x
  3. Step 3: Cross multiply
    307,991.08x = 425,034.66 × 180,758.44
  4. Step 4: Simplify right side
    307,991.08x = 76,828,602,087.53
  5. Step 5: Solve for x
    x = 76,828,602,087.53/307,991.08
  6. Step 6: Final answer
    x = 249,450.74

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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.