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Finding the Fourth Proportional to 260,913.99, 391,504.89 and 124,291.82

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Solution

The fourth proportional to 260,913.99, 391,504.89 and 124,291.82 is: 186,501.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,913.99 : 391,504.89 = 124,291.82 : x
  2. Step 2: Convert to fraction form
    260,913.99/391,504.89 = 124,291.82/x
  3. Step 3: Cross multiply
    260,913.99x = 391,504.89 × 124,291.82
  4. Step 4: Simplify right side
    260,913.99x = 48,660,854,559.64
  5. Step 5: Solve for x
    x = 48,660,854,559.64/260,913.99
  6. Step 6: Final answer
    x = 186,501.51

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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.