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Finding the Fourth Proportional to 123,937.20, 186,051.60 and 123,062.40

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Solution

The fourth proportional to 123,937.20, 186,051.60 and 123,062.40 is: 184,738.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,937.20 : 186,051.60 = 123,062.40 : x
  2. Step 2: Convert to fraction form
    123,937.20/186,051.60 = 123,062.40/x
  3. Step 3: Cross multiply
    123,937.20x = 186,051.60 × 123,062.40
  4. Step 4: Simplify right side
    123,937.20x = 22,895,956,419.84
  5. Step 5: Solve for x
    x = 22,895,956,419.84/123,937.20
  6. Step 6: Final answer
    x = 184,738.37

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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.