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Finding the Fourth Proportional to 123,301.40, 184,692.90 and 102,565.40

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Solution

The fourth proportional to 123,301.40, 184,692.90 and 102,565.40 is: 153,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,301.40 : 184,692.90 = 102,565.40 : x
  2. Step 2: Convert to fraction form
    123,301.40/184,692.90 = 102,565.40/x
  3. Step 3: Cross multiply
    123,301.40x = 184,692.90 × 102,565.40
  4. Step 4: Simplify right side
    123,301.40x = 18,943,101,165.66
  5. Step 5: Solve for x
    x = 18,943,101,165.66/123,301.40
  6. Step 6: Final answer
    x = 153,632.49

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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.