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Finding the Fourth Proportional to 160,718.88, 221,777.12 and 89,092.84

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Solution

The fourth proportional to 160,718.88, 221,777.12 and 89,092.84 is: 122,939.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,718.88 : 221,777.12 = 89,092.84 : x
  2. Step 2: Convert to fraction form
    160,718.88/221,777.12 = 89,092.84/x
  3. Step 3: Cross multiply
    160,718.88x = 221,777.12 × 89,092.84
  4. Step 4: Simplify right side
    160,718.88x = 19,758,753,467.82
  5. Step 5: Solve for x
    x = 19,758,753,467.82/160,718.88
  6. Step 6: Final answer
    x = 122,939.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.