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Finding the Fourth Proportional to 176,652.80, 264,979.20 and 76,860.80

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Solution

The fourth proportional to 176,652.80, 264,979.20 and 76,860.80 is: 115,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,652.80 : 264,979.20 = 76,860.80 : x
  2. Step 2: Convert to fraction form
    176,652.80/264,979.20 = 76,860.80/x
  3. Step 3: Cross multiply
    176,652.80x = 264,979.20 × 76,860.80
  4. Step 4: Simplify right side
    176,652.80x = 20,366,513,295.36
  5. Step 5: Solve for x
    x = 20,366,513,295.36/176,652.80
  6. Step 6: Final answer
    x = 115,291.20

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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.