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Finding the Fourth Proportional to 136,602.62, 203,835.47 and 122,418.10

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Solution

The fourth proportional to 136,602.62, 203,835.47 and 122,418.10 is: 182,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,602.62 : 203,835.47 = 122,418.10 : x
  2. Step 2: Convert to fraction form
    136,602.62/203,835.47 = 122,418.10/x
  3. Step 3: Cross multiply
    136,602.62x = 203,835.47 × 122,418.10
  4. Step 4: Simplify right side
    136,602.62x = 24,953,151,281.31
  5. Step 5: Solve for x
    x = 24,953,151,281.31/136,602.62
  6. Step 6: Final answer
    x = 182,669.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.