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Finding the Fourth Proportional to 168,320.70, 252,140.85 and 104,946.30

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Solution

The fourth proportional to 168,320.70, 252,140.85 and 104,946.30 is: 157,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,320.70 : 252,140.85 = 104,946.30 : x
  2. Step 2: Convert to fraction form
    168,320.70/252,140.85 = 104,946.30/x
  3. Step 3: Cross multiply
    168,320.70x = 252,140.85 × 104,946.30
  4. Step 4: Simplify right side
    168,320.70x = 26,461,249,286.36
  5. Step 5: Solve for x
    x = 26,461,249,286.36/168,320.70
  6. Step 6: Final answer
    x = 157,207.34

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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.