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Finding the Fourth Proportional to 171,625.90, 257,458.05 and 53,296.30

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Solution

The fourth proportional to 171,625.90, 257,458.05 and 53,296.30 is: 79,950.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,625.90 : 257,458.05 = 53,296.30 : x
  2. Step 2: Convert to fraction form
    171,625.90/257,458.05 = 53,296.30/x
  3. Step 3: Cross multiply
    171,625.90x = 257,458.05 × 53,296.30
  4. Step 4: Simplify right side
    171,625.90x = 13,721,561,470.22
  5. Step 5: Solve for x
    x = 13,721,561,470.22/171,625.90
  6. Step 6: Final answer
    x = 79,950.41

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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.