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Finding the Fourth Proportional to 176,616.80, 264,925.20 and 120,629.60

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Solution

The fourth proportional to 176,616.80, 264,925.20 and 120,629.60 is: 180,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,616.80 : 264,925.20 = 120,629.60 : x
  2. Step 2: Convert to fraction form
    176,616.80/264,925.20 = 120,629.60/x
  3. Step 3: Cross multiply
    176,616.80x = 264,925.20 × 120,629.60
  4. Step 4: Simplify right side
    176,616.80x = 31,957,820,905.92
  5. Step 5: Solve for x
    x = 31,957,820,905.92/176,616.80
  6. Step 6: Final answer
    x = 180,944.40

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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.