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Finding the Fourth Proportional to 123,031.20, 184,287.60 and 123,031.20

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Solution

The fourth proportional to 123,031.20, 184,287.60 and 123,031.20 is: 184,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.20 : 184,287.60 = 123,031.20 : x
  2. Step 2: Convert to fraction form
    123,031.20/184,287.60 = 123,031.20/x
  3. Step 3: Cross multiply
    123,031.20x = 184,287.60 × 123,031.20
  4. Step 4: Simplify right side
    123,031.20x = 22,673,124,573.12
  5. Step 5: Solve for x
    x = 22,673,124,573.12/123,031.20
  6. Step 6: Final answer
    x = 184,287.60

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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.