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Finding the Fourth Proportional to 493,625.80, 740,438.67 and 119,648.80

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Solution

The fourth proportional to 493,625.80, 740,438.67 and 119,648.80 is: 179,473.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,625.80 : 740,438.67 = 119,648.80 : x
  2. Step 2: Convert to fraction form
    493,625.80/740,438.67 = 119,648.80/x
  3. Step 3: Cross multiply
    493,625.80x = 740,438.67 × 119,648.80
  4. Step 4: Simplify right side
    493,625.80x = 88,592,598,339.10
  5. Step 5: Solve for x
    x = 88,592,598,339.10/493,625.80
  6. Step 6: Final answer
    x = 179,473.19

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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.