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Finding the Fourth Proportional to 160,496.64, 221,411.88 and 103,926.24

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Solution

The fourth proportional to 160,496.64, 221,411.88 and 103,926.24 is: 143,370.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,496.64 : 221,411.88 = 103,926.24 : x
  2. Step 2: Convert to fraction form
    160,496.64/221,411.88 = 103,926.24/x
  3. Step 3: Cross multiply
    160,496.64x = 221,411.88 × 103,926.24
  4. Step 4: Simplify right side
    160,496.64x = 23,010,504,179.73
  5. Step 5: Solve for x
    x = 23,010,504,179.73/160,496.64
  6. Step 6: Final answer
    x = 143,370.63

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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.