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Finding the Fourth Proportional to 122,571.63, 183,687.34 and 55,848.69

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Solution

The fourth proportional to 122,571.63, 183,687.34 and 55,848.69 is: 83,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,571.63 : 183,687.34 = 55,848.69 : x
  2. Step 2: Convert to fraction form
    122,571.63/183,687.34 = 55,848.69/x
  3. Step 3: Cross multiply
    122,571.63x = 183,687.34 × 55,848.69
  4. Step 4: Simplify right side
    122,571.63x = 10,258,697,308.58
  5. Step 5: Solve for x
    x = 10,258,697,308.58/122,571.63
  6. Step 6: Final answer
    x = 83,695.53

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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.