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Finding the Fourth Proportional to 242,863.92, 364,419.81 and 163,812.38

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Solution

The fourth proportional to 242,863.92, 364,419.81 and 163,812.38 is: 245,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,863.92 : 364,419.81 = 163,812.38 : x
  2. Step 2: Convert to fraction form
    242,863.92/364,419.81 = 163,812.38/x
  3. Step 3: Cross multiply
    242,863.92x = 364,419.81 × 163,812.38
  4. Step 4: Simplify right side
    242,863.92x = 59,696,474,573.15
  5. Step 5: Solve for x
    x = 59,696,474,573.15/242,863.92
  6. Step 6: Final answer
    x = 245,802.15

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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.