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Finding the Fourth Proportional to 114,775.65, 171,995.40 and 102,929.40

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Solution

The fourth proportional to 114,775.65, 171,995.40 and 102,929.40 is: 154,243.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,775.65 : 171,995.40 = 102,929.40 : x
  2. Step 2: Convert to fraction form
    114,775.65/171,995.40 = 102,929.40/x
  3. Step 3: Cross multiply
    114,775.65x = 171,995.40 × 102,929.40
  4. Step 4: Simplify right side
    114,775.65x = 17,703,383,324.76
  5. Step 5: Solve for x
    x = 17,703,383,324.76/114,775.65
  6. Step 6: Final answer
    x = 154,243.37

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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.