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Finding the Fourth Proportional to 176,979.80, 265,469.70 and 52,320.80

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Solution

The fourth proportional to 176,979.80, 265,469.70 and 52,320.80 is: 78,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,979.80 : 265,469.70 = 52,320.80 : x
  2. Step 2: Convert to fraction form
    176,979.80/265,469.70 = 52,320.80/x
  3. Step 3: Cross multiply
    176,979.80x = 265,469.70 × 52,320.80
  4. Step 4: Simplify right side
    176,979.80x = 13,889,587,079.76
  5. Step 5: Solve for x
    x = 13,889,587,079.76/176,979.80
  6. Step 6: Final answer
    x = 78,481.20

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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.