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Finding the Fourth Proportional to 171,752.99, 257,407.74 and 76,913.73

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Solution

The fourth proportional to 171,752.99, 257,407.74 and 76,913.73 is: 115,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,752.99 : 257,407.74 = 76,913.73 : x
  2. Step 2: Convert to fraction form
    171,752.99/257,407.74 = 76,913.73/x
  3. Step 3: Cross multiply
    171,752.99x = 257,407.74 × 76,913.73
  4. Step 4: Simplify right side
    171,752.99x = 19,798,189,414.27
  5. Step 5: Solve for x
    x = 19,798,189,414.27/171,752.99
  6. Step 6: Final answer
    x = 115,271.30

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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.