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Finding the Fourth Proportional to 122,693.70, 184,040.55 and 72,927.30

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Solution

The fourth proportional to 122,693.70, 184,040.55 and 72,927.30 is: 109,390.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,693.70 : 184,040.55 = 72,927.30 : x
  2. Step 2: Convert to fraction form
    122,693.70/184,040.55 = 72,927.30/x
  3. Step 3: Cross multiply
    122,693.70x = 184,040.55 × 72,927.30
  4. Step 4: Simplify right side
    122,693.70x = 13,421,580,402.02
  5. Step 5: Solve for x
    x = 13,421,580,402.02/122,693.70
  6. Step 6: Final answer
    x = 109,390.95

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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.