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Finding the Fourth Proportional to 371,796.18, 557,693.13 and 105,556.87

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Solution

The fourth proportional to 371,796.18, 557,693.13 and 105,556.87 is: 158,334.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,796.18 : 557,693.13 = 105,556.87 : x
  2. Step 2: Convert to fraction form
    371,796.18/557,693.13 = 105,556.87/x
  3. Step 3: Cross multiply
    371,796.18x = 557,693.13 × 105,556.87
  4. Step 4: Simplify right side
    371,796.18x = 58,868,341,425.62
  5. Step 5: Solve for x
    x = 58,868,341,425.62/371,796.18
  6. Step 6: Final answer
    x = 158,334.98

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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.