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Finding the Fourth Proportional to 325,564.38, 488,513.30 and 154,979.16

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Solution

The fourth proportional to 325,564.38, 488,513.30 and 154,979.16 is: 232,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,564.38 : 488,513.30 = 154,979.16 : x
  2. Step 2: Convert to fraction form
    325,564.38/488,513.30 = 154,979.16/x
  3. Step 3: Cross multiply
    325,564.38x = 488,513.30 × 154,979.16
  4. Step 4: Simplify right side
    325,564.38x = 75,709,378,276.01
  5. Step 5: Solve for x
    x = 75,709,378,276.01/325,564.38
  6. Step 6: Final answer
    x = 232,548.10

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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.