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Finding the Fourth Proportional to 648,249.20, 972,373.80 and 174,933.80

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Solution

The fourth proportional to 648,249.20, 972,373.80 and 174,933.80 is: 262,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,249.20 : 972,373.80 = 174,933.80 : x
  2. Step 2: Convert to fraction form
    648,249.20/972,373.80 = 174,933.80/x
  3. Step 3: Cross multiply
    648,249.20x = 972,373.80 × 174,933.80
  4. Step 4: Simplify right side
    648,249.20x = 170,101,043,854.44
  5. Step 5: Solve for x
    x = 170,101,043,854.44/648,249.20
  6. Step 6: Final answer
    x = 262,400.70

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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.