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Finding the Fourth Proportional to 229,140.33, 343,628.48 and 79,340.40

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Solution

The fourth proportional to 229,140.33, 343,628.48 and 79,340.40 is: 118,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,140.33 : 343,628.48 = 79,340.40 : x
  2. Step 2: Convert to fraction form
    229,140.33/343,628.48 = 79,340.40/x
  3. Step 3: Cross multiply
    229,140.33x = 343,628.48 × 79,340.40
  4. Step 4: Simplify right side
    229,140.33x = 27,263,621,054.59
  5. Step 5: Solve for x
    x = 27,263,621,054.59/229,140.33
  6. Step 6: Final answer
    x = 118,982.20

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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.