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Finding the Fourth Proportional to 92,692.92, 127,977.66 and 54,979.32

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Solution

The fourth proportional to 92,692.92, 127,977.66 and 54,979.32 is: 75,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,692.92 : 127,977.66 = 54,979.32 : x
  2. Step 2: Convert to fraction form
    92,692.92/127,977.66 = 54,979.32/x
  3. Step 3: Cross multiply
    92,692.92x = 127,977.66 × 54,979.32
  4. Step 4: Simplify right side
    92,692.92x = 7,036,124,721.99
  5. Step 5: Solve for x
    x = 7,036,124,721.99/92,692.92
  6. Step 6: Final answer
    x = 75,907.90

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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.