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Finding the Fourth Proportional to 160,760.58, 221,805.05 and 92,772.78

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Solution

The fourth proportional to 160,760.58, 221,805.05 and 92,772.78 is: 128,000.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,760.58 : 221,805.05 = 92,772.78 : x
  2. Step 2: Convert to fraction form
    160,760.58/221,805.05 = 92,772.78/x
  3. Step 3: Cross multiply
    160,760.58x = 221,805.05 × 92,772.78
  4. Step 4: Simplify right side
    160,760.58x = 20,577,470,642.68
  5. Step 5: Solve for x
    x = 20,577,470,642.68/160,760.58
  6. Step 6: Final answer
    x = 128,000.72

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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.