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Finding the Fourth Proportional to 341,776.71, 512,714.07 and 105,139.26

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Solution

The fourth proportional to 341,776.71, 512,714.07 and 105,139.26 is: 157,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,776.71 : 512,714.07 = 105,139.26 : x
  2. Step 2: Convert to fraction form
    341,776.71/512,714.07 = 105,139.26/x
  3. Step 3: Cross multiply
    341,776.71x = 512,714.07 × 105,139.26
  4. Step 4: Simplify right side
    341,776.71x = 53,906,377,911.39
  5. Step 5: Solve for x
    x = 53,906,377,911.39/341,776.71
  6. Step 6: Final answer
    x = 157,723.97

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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.