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Finding the Fourth Proportional to 123,178.40, 184,710.12 and 63,998.18

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Solution

The fourth proportional to 123,178.40, 184,710.12 and 63,998.18 is: 95,967.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,178.40 : 184,710.12 = 63,998.18 : x
  2. Step 2: Convert to fraction form
    123,178.40/184,710.12 = 63,998.18/x
  3. Step 3: Cross multiply
    123,178.40x = 184,710.12 × 63,998.18
  4. Step 4: Simplify right side
    123,178.40x = 11,821,111,507.58
  5. Step 5: Solve for x
    x = 11,821,111,507.58/123,178.40
  6. Step 6: Final answer
    x = 95,967.41

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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.