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Finding the Fourth Proportional to 123,020.10, 184,530.15 and 39,914.10

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Solution

The fourth proportional to 123,020.10, 184,530.15 and 39,914.10 is: 59,871.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,020.10 : 184,530.15 = 39,914.10 : x
  2. Step 2: Convert to fraction form
    123,020.10/184,530.15 = 39,914.10/x
  3. Step 3: Cross multiply
    123,020.10x = 184,530.15 × 39,914.10
  4. Step 4: Simplify right side
    123,020.10x = 7,365,354,860.12
  5. Step 5: Solve for x
    x = 7,365,354,860.12/123,020.10
  6. Step 6: Final answer
    x = 59,871.15

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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.