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Finding the Fourth Proportional to 171,950.40, 257,925.60 and 53,620.80

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Solution

The fourth proportional to 171,950.40, 257,925.60 and 53,620.80 is: 80,431.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,950.40 : 257,925.60 = 53,620.80 : x
  2. Step 2: Convert to fraction form
    171,950.40/257,925.60 = 53,620.80/x
  3. Step 3: Cross multiply
    171,950.40x = 257,925.60 × 53,620.80
  4. Step 4: Simplify right side
    171,950.40x = 13,830,177,012.48
  5. Step 5: Solve for x
    x = 13,830,177,012.48/171,950.40
  6. Step 6: Final answer
    x = 80,431.20

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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.