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Finding the Fourth Proportional to 172,290.65, 237,782.45 and 96,839.15

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Solution

The fourth proportional to 172,290.65, 237,782.45 and 96,839.15 is: 133,650.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,290.65 : 237,782.45 = 96,839.15 : x
  2. Step 2: Convert to fraction form
    172,290.65/237,782.45 = 96,839.15/x
  3. Step 3: Cross multiply
    172,290.65x = 237,782.45 × 96,839.15
  4. Step 4: Simplify right side
    172,290.65x = 23,026,649,396.10
  5. Step 5: Solve for x
    x = 23,026,649,396.10/172,290.65
  6. Step 6: Final answer
    x = 133,650.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.