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Finding the Fourth Proportional to 160,126.94, 220,986.65 and 88,505.44

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Solution

The fourth proportional to 160,126.94, 220,986.65 and 88,505.44 is: 122,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,126.94 : 220,986.65 = 88,505.44 : x
  2. Step 2: Convert to fraction form
    160,126.94/220,986.65 = 88,505.44/x
  3. Step 3: Cross multiply
    160,126.94x = 220,986.65 × 88,505.44
  4. Step 4: Simplify right side
    160,126.94x = 19,558,520,692.38
  5. Step 5: Solve for x
    x = 19,558,520,692.38/160,126.94
  6. Step 6: Final answer
    x = 122,143.85

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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.