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Finding the Fourth Proportional to 341,888.79, 512,839.78 and 105,231.22

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Solution

The fourth proportional to 341,888.79, 512,839.78 and 105,231.22 is: 157,848.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,888.79 : 512,839.78 = 105,231.22 : x
  2. Step 2: Convert to fraction form
    341,888.79/512,839.78 = 105,231.22/x
  3. Step 3: Cross multiply
    341,888.79x = 512,839.78 × 105,231.22
  4. Step 4: Simplify right side
    341,888.79x = 53,966,755,713.93
  5. Step 5: Solve for x
    x = 53,966,755,713.93/341,888.79
  6. Step 6: Final answer
    x = 157,848.86

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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.