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Finding the Fourth Proportional to 137,665.90, 206,455.09 and 93,575.98

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Solution

The fourth proportional to 137,665.90, 206,455.09 and 93,575.98 is: 140,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,665.90 : 206,455.09 = 93,575.98 : x
  2. Step 2: Convert to fraction form
    137,665.90/206,455.09 = 93,575.98/x
  3. Step 3: Cross multiply
    137,665.90x = 206,455.09 × 93,575.98
  4. Step 4: Simplify right side
    137,665.90x = 19,319,235,872.58
  5. Step 5: Solve for x
    x = 19,319,235,872.58/137,665.90
  6. Step 6: Final answer
    x = 140,334.22

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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.