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Finding the Fourth Proportional to 122,181.30, 183,138.30 and 43,254.90

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Solution

The fourth proportional to 122,181.30, 183,138.30 and 43,254.90 is: 64,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,181.30 : 183,138.30 = 43,254.90 : x
  2. Step 2: Convert to fraction form
    122,181.30/183,138.30 = 43,254.90/x
  3. Step 3: Cross multiply
    122,181.30x = 183,138.30 × 43,254.90
  4. Step 4: Simplify right side
    122,181.30x = 7,921,628,852.67
  5. Step 5: Solve for x
    x = 7,921,628,852.67/122,181.30
  6. Step 6: Final answer
    x = 64,835.03

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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.