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Finding the Fourth Proportional to 245,545.11, 368,243.64 and 161,301.87

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Solution

The fourth proportional to 245,545.11, 368,243.64 and 161,301.87 is: 241,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,545.11 : 368,243.64 = 161,301.87 : x
  2. Step 2: Convert to fraction form
    245,545.11/368,243.64 = 161,301.87/x
  3. Step 3: Cross multiply
    245,545.11x = 368,243.64 × 161,301.87
  4. Step 4: Simplify right side
    245,545.11x = 59,398,387,747.61
  5. Step 5: Solve for x
    x = 59,398,387,747.61/245,545.11
  6. Step 6: Final answer
    x = 241,904.18

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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.