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Finding the Fourth Proportional to 89,692.92, 123,772.25 and 51,425.08

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Solution

The fourth proportional to 89,692.92, 123,772.25 and 51,425.08 is: 70,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,692.92 : 123,772.25 = 51,425.08 : x
  2. Step 2: Convert to fraction form
    89,692.92/123,772.25 = 51,425.08/x
  3. Step 3: Cross multiply
    89,692.92x = 123,772.25 × 51,425.08
  4. Step 4: Simplify right side
    89,692.92x = 6,364,997,677.16
  5. Step 5: Solve for x
    x = 6,364,997,677.16/89,692.92
  6. Step 6: Final answer
    x = 70,964.33

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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.