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Finding the Fourth Proportional to 245,569.20, 368,137.80 and 166,426.80

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Solution

The fourth proportional to 245,569.20, 368,137.80 and 166,426.80 is: 249,493.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,569.20 : 368,137.80 = 166,426.80 : x
  2. Step 2: Convert to fraction form
    245,569.20/368,137.80 = 166,426.80/x
  3. Step 3: Cross multiply
    245,569.20x = 368,137.80 × 166,426.80
  4. Step 4: Simplify right side
    245,569.20x = 61,267,996,013.04
  5. Step 5: Solve for x
    x = 61,267,996,013.04/245,569.20
  6. Step 6: Final answer
    x = 249,493.81

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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.