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Finding the Fourth Proportional to 176,305.20, 264,630.60 and 87,658.80

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Solution

The fourth proportional to 176,305.20, 264,630.60 and 87,658.80 is: 131,574.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,305.20 : 264,630.60 = 87,658.80 : x
  2. Step 2: Convert to fraction form
    176,305.20/264,630.60 = 87,658.80/x
  3. Step 3: Cross multiply
    176,305.20x = 264,630.60 × 87,658.80
  4. Step 4: Simplify right side
    176,305.20x = 23,197,200,839.28
  5. Step 5: Solve for x
    x = 23,197,200,839.28/176,305.20
  6. Step 6: Final answer
    x = 131,574.12

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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.