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Finding the Fourth Proportional to 122,938.80, 184,080.15 and 122,938.80

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Solution

The fourth proportional to 122,938.80, 184,080.15 and 122,938.80 is: 184,080.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,938.80 : 184,080.15 = 122,938.80 : x
  2. Step 2: Convert to fraction form
    122,938.80/184,080.15 = 122,938.80/x
  3. Step 3: Cross multiply
    122,938.80x = 184,080.15 × 122,938.80
  4. Step 4: Simplify right side
    122,938.80x = 22,630,592,744.82
  5. Step 5: Solve for x
    x = 22,630,592,744.82/122,938.80
  6. Step 6: Final answer
    x = 184,080.15

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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.