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Finding the Fourth Proportional to 229,070.87, 343,523.97 and 79,270.48

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Solution

The fourth proportional to 229,070.87, 343,523.97 and 79,270.48 is: 118,877.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,070.87 : 343,523.97 = 79,270.48 : x
  2. Step 2: Convert to fraction form
    229,070.87/343,523.97 = 79,270.48/x
  3. Step 3: Cross multiply
    229,070.87x = 343,523.97 × 79,270.48
  4. Step 4: Simplify right side
    229,070.87x = 27,231,310,422.81
  5. Step 5: Solve for x
    x = 27,231,310,422.81/229,070.87
  6. Step 6: Final answer
    x = 118,877.23

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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.