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Finding the Fourth Proportional to 136,446.60, 204,669.90 and 61,602.60

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Solution

The fourth proportional to 136,446.60, 204,669.90 and 61,602.60 is: 92,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,446.60 : 204,669.90 = 61,602.60 : x
  2. Step 2: Convert to fraction form
    136,446.60/204,669.90 = 61,602.60/x
  3. Step 3: Cross multiply
    136,446.60x = 204,669.90 × 61,602.60
  4. Step 4: Simplify right side
    136,446.60x = 12,608,197,981.74
  5. Step 5: Solve for x
    x = 12,608,197,981.74/136,446.60
  6. Step 6: Final answer
    x = 92,403.90

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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.