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Finding the Fourth Proportional to 235,987.45, 353,974.69 and 58,490.53

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Solution

The fourth proportional to 235,987.45, 353,974.69 and 58,490.53 is: 87,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,987.45 : 353,974.69 = 58,490.53 : x
  2. Step 2: Convert to fraction form
    235,987.45/353,974.69 = 58,490.53/x
  3. Step 3: Cross multiply
    235,987.45x = 353,974.69 × 58,490.53
  4. Step 4: Simplify right side
    235,987.45x = 20,704,166,412.86
  5. Step 5: Solve for x
    x = 20,704,166,412.86/235,987.45
  6. Step 6: Final answer
    x = 87,734.19

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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.