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Finding the Fourth Proportional to 371,590.66, 557,384.94 and 105,353.44

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Solution

The fourth proportional to 371,590.66, 557,384.94 and 105,353.44 is: 158,029.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,590.66 : 557,384.94 = 105,353.44 : x
  2. Step 2: Convert to fraction form
    371,590.66/557,384.94 = 105,353.44/x
  3. Step 3: Cross multiply
    371,590.66x = 557,384.94 × 105,353.44
  4. Step 4: Simplify right side
    371,590.66x = 58,722,420,833.19
  5. Step 5: Solve for x
    x = 58,722,420,833.19/371,590.66
  6. Step 6: Final answer
    x = 158,029.86

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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.