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Finding the Fourth Proportional to 133,800.63, 184,615.95 and 77,179.20

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Solution

The fourth proportional to 133,800.63, 184,615.95 and 77,179.20 is: 106,490.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,800.63 : 184,615.95 = 77,179.20 : x
  2. Step 2: Convert to fraction form
    133,800.63/184,615.95 = 77,179.20/x
  3. Step 3: Cross multiply
    133,800.63x = 184,615.95 × 77,179.20
  4. Step 4: Simplify right side
    133,800.63x = 14,248,511,328.24
  5. Step 5: Solve for x
    x = 14,248,511,328.24/133,800.63
  6. Step 6: Final answer
    x = 106,490.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.