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Finding the Fourth Proportional to 160,659.66, 221,716.20 and 96,985.14

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Solution

The fourth proportional to 160,659.66, 221,716.20 and 96,985.14 is: 133,843.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,659.66 : 221,716.20 = 96,985.14 : x
  2. Step 2: Convert to fraction form
    160,659.66/221,716.20 = 96,985.14/x
  3. Step 3: Cross multiply
    160,659.66x = 221,716.20 × 96,985.14
  4. Step 4: Simplify right side
    160,659.66x = 21,503,176,697.27
  5. Step 5: Solve for x
    x = 21,503,176,697.27/160,659.66
  6. Step 6: Final answer
    x = 133,843.04

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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.