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Finding the Fourth Proportional to 341,903.38, 512,876.93 and 131,541.32

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Solution

The fourth proportional to 341,903.38, 512,876.93 and 131,541.32 is: 197,320.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,903.38 : 512,876.93 = 131,541.32 : x
  2. Step 2: Convert to fraction form
    341,903.38/512,876.93 = 131,541.32/x
  3. Step 3: Cross multiply
    341,903.38x = 512,876.93 × 131,541.32
  4. Step 4: Simplify right side
    341,903.38x = 67,464,508,369.75
  5. Step 5: Solve for x
    x = 67,464,508,369.75/341,903.38
  6. Step 6: Final answer
    x = 197,320.39

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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.