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Finding the Fourth Proportional to 177,320.80, 265,333.20 and 130,664.80

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Solution

The fourth proportional to 177,320.80, 265,333.20 and 130,664.80 is: 195,519.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,320.80 : 265,333.20 = 130,664.80 : x
  2. Step 2: Convert to fraction form
    177,320.80/265,333.20 = 130,664.80/x
  3. Step 3: Cross multiply
    177,320.80x = 265,333.20 × 130,664.80
  4. Step 4: Simplify right side
    177,320.80x = 34,669,709,511.36
  5. Step 5: Solve for x
    x = 34,669,709,511.36/177,320.80
  6. Step 6: Final answer
    x = 195,519.70

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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.