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Finding the Fourth Proportional to 171,182.68, 256,834.80 and 76,404.24

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Solution

The fourth proportional to 171,182.68, 256,834.80 and 76,404.24 is: 114,633.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,182.68 : 256,834.80 = 76,404.24 : x
  2. Step 2: Convert to fraction form
    171,182.68/256,834.80 = 76,404.24/x
  3. Step 3: Cross multiply
    171,182.68x = 256,834.80 × 76,404.24
  4. Step 4: Simplify right side
    171,182.68x = 19,623,267,699.55
  5. Step 5: Solve for x
    x = 19,623,267,699.55/171,182.68
  6. Step 6: Final answer
    x = 114,633.49

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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.