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Finding the Fourth Proportional to 351,019.20, 526,051.62 and 148,446.90

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Solution

The fourth proportional to 351,019.20, 526,051.62 and 148,446.90 is: 222,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,019.20 : 526,051.62 = 148,446.90 : x
  2. Step 2: Convert to fraction form
    351,019.20/526,051.62 = 148,446.90/x
  3. Step 3: Cross multiply
    351,019.20x = 526,051.62 × 148,446.90
  4. Step 4: Simplify right side
    351,019.20x = 78,090,732,228.98
  5. Step 5: Solve for x
    x = 78,090,732,228.98/351,019.20
  6. Step 6: Final answer
    x = 222,468.55

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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.