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Finding the Fourth Proportional to 235,788.54, 353,686.48 and 131,271.82

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Solution

The fourth proportional to 235,788.54, 353,686.48 and 131,271.82 is: 196,909.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,788.54 : 353,686.48 = 131,271.82 : x
  2. Step 2: Convert to fraction form
    235,788.54/353,686.48 = 131,271.82/x
  3. Step 3: Cross multiply
    235,788.54x = 353,686.48 × 131,271.82
  4. Step 4: Simplify right side
    235,788.54x = 46,429,067,938.99
  5. Step 5: Solve for x
    x = 46,429,067,938.99/235,788.54
  6. Step 6: Final answer
    x = 196,909.77

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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.