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Finding the Fourth Proportional to 122,742.30, 184,113.45 and 99,414.30

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Solution

The fourth proportional to 122,742.30, 184,113.45 and 99,414.30 is: 149,121.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,742.30 : 184,113.45 = 99,414.30 : x
  2. Step 2: Convert to fraction form
    122,742.30/184,113.45 = 99,414.30/x
  3. Step 3: Cross multiply
    122,742.30x = 184,113.45 × 99,414.30
  4. Step 4: Simplify right side
    122,742.30x = 18,303,509,752.34
  5. Step 5: Solve for x
    x = 18,303,509,752.34/122,742.30
  6. Step 6: Final answer
    x = 149,121.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.