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Finding the Fourth Proportional to 371,996.28, 557,910.36 and 105,750.90

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Solution

The fourth proportional to 371,996.28, 557,910.36 and 105,750.90 is: 158,602.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,996.28 : 557,910.36 = 105,750.90 : x
  2. Step 2: Convert to fraction form
    371,996.28/557,910.36 = 105,750.90/x
  3. Step 3: Cross multiply
    371,996.28x = 557,910.36 × 105,750.90
  4. Step 4: Simplify right side
    371,996.28x = 58,999,522,689.32
  5. Step 5: Solve for x
    x = 58,999,522,689.32/371,996.28
  6. Step 6: Final answer
    x = 158,602.45

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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.