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Finding the Fourth Proportional to 404,421.60, 606,851.10 and 167,788.20

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Solution

The fourth proportional to 404,421.60, 606,851.10 and 167,788.20 is: 251,773.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,421.60 : 606,851.10 = 167,788.20 : x
  2. Step 2: Convert to fraction form
    404,421.60/606,851.10 = 167,788.20/x
  3. Step 3: Cross multiply
    404,421.60x = 606,851.10 × 167,788.20
  4. Step 4: Simplify right side
    404,421.60x = 101,822,453,737.02
  5. Step 5: Solve for x
    x = 101,822,453,737.02/404,421.60
  6. Step 6: Final answer
    x = 251,773.04

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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.