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Finding the Fourth Proportional to 168,802.20, 253,203.30 and 164,865.60

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Solution

The fourth proportional to 168,802.20, 253,203.30 and 164,865.60 is: 247,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,802.20 : 253,203.30 = 164,865.60 : x
  2. Step 2: Convert to fraction form
    168,802.20/253,203.30 = 164,865.60/x
  3. Step 3: Cross multiply
    168,802.20x = 253,203.30 × 164,865.60
  4. Step 4: Simplify right side
    168,802.20x = 41,744,513,976.48
  5. Step 5: Solve for x
    x = 41,744,513,976.48/168,802.20
  6. Step 6: Final answer
    x = 247,298.40

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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.