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Finding the Fourth Proportional to 160,618.48, 221,650.20 and 88,998.28

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Solution

The fourth proportional to 160,618.48, 221,650.20 and 88,998.28 is: 122,815.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,618.48 : 221,650.20 = 88,998.28 : x
  2. Step 2: Convert to fraction form
    160,618.48/221,650.20 = 88,998.28/x
  3. Step 3: Cross multiply
    160,618.48x = 221,650.20 × 88,998.28
  4. Step 4: Simplify right side
    160,618.48x = 19,726,486,561.66
  5. Step 5: Solve for x
    x = 19,726,486,561.66/160,618.48
  6. Step 6: Final answer
    x = 122,815.80

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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.