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Finding the Fourth Proportional to 174,431.80, 261,647.70 and 43,103.80

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Solution

The fourth proportional to 174,431.80, 261,647.70 and 43,103.80 is: 64,655.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,431.80 : 261,647.70 = 43,103.80 : x
  2. Step 2: Convert to fraction form
    174,431.80/261,647.70 = 43,103.80/x
  3. Step 3: Cross multiply
    174,431.80x = 261,647.70 × 43,103.80
  4. Step 4: Simplify right side
    174,431.80x = 11,278,010,131.26
  5. Step 5: Solve for x
    x = 11,278,010,131.26/174,431.80
  6. Step 6: Final answer
    x = 64,655.70

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1.5x scale

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.