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Finding the Fourth Proportional to 351,157.20, 526,390.20 and 173,691.60

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Solution

The fourth proportional to 351,157.20, 526,390.20 and 173,691.60 is: 260,366.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,157.20 : 526,390.20 = 173,691.60 : x
  2. Step 2: Convert to fraction form
    351,157.20/526,390.20 = 173,691.60/x
  3. Step 3: Cross multiply
    351,157.20x = 526,390.20 × 173,691.60
  4. Step 4: Simplify right side
    351,157.20x = 91,429,556,062.32
  5. Step 5: Solve for x
    x = 91,429,556,062.32/351,157.20
  6. Step 6: Final answer
    x = 260,366.46

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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.