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Finding the Fourth Proportional to 229,968.80, 345,346.80 and 124,992.80

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Solution

The fourth proportional to 229,968.80, 345,346.80 and 124,992.80 is: 187,703.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,968.80 : 345,346.80 = 124,992.80 : x
  2. Step 2: Convert to fraction form
    229,968.80/345,346.80 = 124,992.80/x
  3. Step 3: Cross multiply
    229,968.80x = 345,346.80 × 124,992.80
  4. Step 4: Simplify right side
    229,968.80x = 43,165,863,503.04
  5. Step 5: Solve for x
    x = 43,165,863,503.04/229,968.80
  6. Step 6: Final answer
    x = 187,703.13

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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.