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Finding the Fourth Proportional to 350,690.52, 526,268.79 and 129,074.52

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Solution

The fourth proportional to 350,690.52, 526,268.79 and 129,074.52 is: 193,697.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,690.52 : 526,268.79 = 129,074.52 : x
  2. Step 2: Convert to fraction form
    350,690.52/526,268.79 = 129,074.52/x
  3. Step 3: Cross multiply
    350,690.52x = 526,268.79 × 129,074.52
  4. Step 4: Simplify right side
    350,690.52x = 67,927,891,460.23
  5. Step 5: Solve for x
    x = 67,927,891,460.23/350,690.52
  6. Step 6: Final answer
    x = 193,697.54

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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.