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Finding the Fourth Proportional to 75,692.88, 104,460.84 and 42,158.88

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Solution

The fourth proportional to 75,692.88, 104,460.84 and 42,158.88 is: 58,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,692.88 : 104,460.84 = 42,158.88 : x
  2. Step 2: Convert to fraction form
    75,692.88/104,460.84 = 42,158.88/x
  3. Step 3: Cross multiply
    75,692.88x = 104,460.84 × 42,158.88
  4. Step 4: Simplify right side
    75,692.88x = 4,403,952,018.26
  5. Step 5: Solve for x
    x = 4,403,952,018.26/75,692.88
  6. Step 6: Final answer
    x = 58,181.85

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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.