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Finding the Fourth Proportional to 160,706.52, 221,770.98 and 89,086.32

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Solution

The fourth proportional to 160,706.52, 221,770.98 and 89,086.32 is: 122,936.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,706.52 : 221,770.98 = 89,086.32 : x
  2. Step 2: Convert to fraction form
    160,706.52/221,770.98 = 89,086.32/x
  3. Step 3: Cross multiply
    160,706.52x = 221,770.98 × 89,086.32
  4. Step 4: Simplify right side
    160,706.52x = 19,756,760,490.99
  5. Step 5: Solve for x
    x = 19,756,760,490.99/160,706.52
  6. Step 6: Final answer
    x = 122,936.89

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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.