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Finding the Fourth Proportional to 122,458.60, 183,644.70 and 55,930.60

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Solution

The fourth proportional to 122,458.60, 183,644.70 and 55,930.60 is: 83,876.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,458.60 : 183,644.70 = 55,930.60 : x
  2. Step 2: Convert to fraction form
    122,458.60/183,644.70 = 55,930.60/x
  3. Step 3: Cross multiply
    122,458.60x = 183,644.70 × 55,930.60
  4. Step 4: Simplify right side
    122,458.60x = 10,271,358,257.82
  5. Step 5: Solve for x
    x = 10,271,358,257.82/122,458.60
  6. Step 6: Final answer
    x = 83,876.17

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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.