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Finding the Fourth Proportional to 123,008.10, 184,512.15 and 120,675.30

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Solution

The fourth proportional to 123,008.10, 184,512.15 and 120,675.30 is: 181,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,008.10 : 184,512.15 = 120,675.30 : x
  2. Step 2: Convert to fraction form
    123,008.10/184,512.15 = 120,675.30/x
  3. Step 3: Cross multiply
    123,008.10x = 184,512.15 × 120,675.30
  4. Step 4: Simplify right side
    123,008.10x = 22,266,059,054.90
  5. Step 5: Solve for x
    x = 22,266,059,054.90/123,008.10
  6. Step 6: Final answer
    x = 181,012.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.