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Finding the Fourth Proportional to 245,433.80, 368,154.10 and 161,729.80

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Solution

The fourth proportional to 245,433.80, 368,154.10 and 161,729.80 is: 242,596.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,433.80 : 368,154.10 = 161,729.80 : x
  2. Step 2: Convert to fraction form
    245,433.80/368,154.10 = 161,729.80/x
  3. Step 3: Cross multiply
    245,433.80x = 368,154.10 × 161,729.80
  4. Step 4: Simplify right side
    245,433.80x = 59,541,488,962.18
  5. Step 5: Solve for x
    x = 59,541,488,962.18/245,433.80
  6. Step 6: Final answer
    x = 242,596.94

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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.