Home / 171,520.20-257,290.02-53,208.36

Finding the Fourth Proportional to 171,520.20, 257,290.02 and 53,208.36

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Solution

The fourth proportional to 171,520.20, 257,290.02 and 53,208.36 is: 79,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,520.20 : 257,290.02 = 53,208.36 : x
  2. Step 2: Convert to fraction form
    171,520.20/257,290.02 = 53,208.36/x
  3. Step 3: Cross multiply
    171,520.20x = 257,290.02 × 53,208.36
  4. Step 4: Simplify right side
    171,520.20x = 13,689,980,008.57
  5. Step 5: Solve for x
    x = 13,689,980,008.57/171,520.20
  6. Step 6: Final answer
    x = 79,815.56

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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.