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Finding the Fourth Proportional to 245,369.17, 368,057.40 and 161,665.39

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Solution

The fourth proportional to 245,369.17, 368,057.40 and 161,665.39 is: 242,500.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,369.17 : 368,057.40 = 161,665.39 : x
  2. Step 2: Convert to fraction form
    245,369.17/368,057.40 = 161,665.39/x
  3. Step 3: Cross multiply
    245,369.17x = 368,057.40 × 161,665.39
  4. Step 4: Simplify right side
    245,369.17x = 59,502,143,113.39
  5. Step 5: Solve for x
    x = 59,502,143,113.39/245,369.17
  6. Step 6: Final answer
    x = 242,500.49

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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.