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Finding the Fourth Proportional to 174,428.80, 261,643.20 and 43,100.80

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Solution

The fourth proportional to 174,428.80, 261,643.20 and 43,100.80 is: 64,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,428.80 : 261,643.20 = 43,100.80 : x
  2. Step 2: Convert to fraction form
    174,428.80/261,643.20 = 43,100.80/x
  3. Step 3: Cross multiply
    174,428.80x = 261,643.20 × 43,100.80
  4. Step 4: Simplify right side
    174,428.80x = 11,277,031,234.56
  5. Step 5: Solve for x
    x = 11,277,031,234.56/174,428.80
  6. Step 6: Final answer
    x = 64,651.20

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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.