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Finding the Fourth Proportional to 372,433.65, 558,706.07 and 172,774.22

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Solution

The fourth proportional to 372,433.65, 558,706.07 and 172,774.22 is: 259,187.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,433.65 : 558,706.07 = 172,774.22 : x
  2. Step 2: Convert to fraction form
    372,433.65/558,706.07 = 172,774.22/x
  3. Step 3: Cross multiply
    372,433.65x = 558,706.07 × 172,774.22
  4. Step 4: Simplify right side
    372,433.65x = 96,530,001,796.11
  5. Step 5: Solve for x
    x = 96,530,001,796.11/372,433.65
  6. Step 6: Final answer
    x = 259,187.11

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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.