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Finding the Fourth Proportional to 404,590.20, 607,031.10 and 168,102.60

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Solution

The fourth proportional to 404,590.20, 607,031.10 and 168,102.60 is: 252,214.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,590.20 : 607,031.10 = 168,102.60 : x
  2. Step 2: Convert to fraction form
    404,590.20/607,031.10 = 168,102.60/x
  3. Step 3: Cross multiply
    404,590.20x = 607,031.10 × 168,102.60
  4. Step 4: Simplify right side
    404,590.20x = 102,043,506,190.86
  5. Step 5: Solve for x
    x = 102,043,506,190.86/404,590.20
  6. Step 6: Final answer
    x = 252,214.48

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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.