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Finding the Fourth Proportional to 171,069.90, 256,896.45 and 121,497.90

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Solution

The fourth proportional to 171,069.90, 256,896.45 and 121,497.90 is: 182,453.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,069.90 : 256,896.45 = 121,497.90 : x
  2. Step 2: Convert to fraction form
    171,069.90/256,896.45 = 121,497.90/x
  3. Step 3: Cross multiply
    171,069.90x = 256,896.45 × 121,497.90
  4. Step 4: Simplify right side
    171,069.90x = 31,212,379,192.46
  5. Step 5: Solve for x
    x = 31,212,379,192.46/171,069.90
  6. Step 6: Final answer
    x = 182,453.95

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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.