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Finding the Fourth Proportional to 344,889.92, 517,412.72 and 105,025.28

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Solution

The fourth proportional to 344,889.92, 517,412.72 and 105,025.28 is: 157,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,889.92 : 517,412.72 = 105,025.28 : x
  2. Step 2: Convert to fraction form
    344,889.92/517,412.72 = 105,025.28/x
  3. Step 3: Cross multiply
    344,889.92x = 517,412.72 × 105,025.28
  4. Step 4: Simplify right side
    344,889.92x = 54,341,413,469.06
  5. Step 5: Solve for x
    x = 54,341,413,469.06/344,889.92
  6. Step 6: Final answer
    x = 157,561.62

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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.