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Finding the Fourth Proportional to 122,881.80, 184,394.40 and 51,800.12

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Solution

The fourth proportional to 122,881.80, 184,394.40 and 51,800.12 is: 77,730.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,881.80 : 184,394.40 = 51,800.12 : x
  2. Step 2: Convert to fraction form
    122,881.80/184,394.40 = 51,800.12/x
  3. Step 3: Cross multiply
    122,881.80x = 184,394.40 × 51,800.12
  4. Step 4: Simplify right side
    122,881.80x = 9,551,652,047.33
  5. Step 5: Solve for x
    x = 9,551,652,047.33/122,881.80
  6. Step 6: Final answer
    x = 77,730.40

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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.