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Finding the Fourth Proportional to 160,690.42, 221,763.45 and 89,073.46

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Solution

The fourth proportional to 160,690.42, 221,763.45 and 89,073.46 is: 122,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,690.42 : 221,763.45 = 89,073.46 : x
  2. Step 2: Convert to fraction form
    160,690.42/221,763.45 = 89,073.46/x
  3. Step 3: Cross multiply
    160,690.42x = 221,763.45 × 89,073.46
  4. Step 4: Simplify right side
    160,690.42x = 19,753,237,793.04
  5. Step 5: Solve for x
    x = 19,753,237,793.04/160,690.42
  6. Step 6: Final answer
    x = 122,927.29

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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.