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Finding the Fourth Proportional to 193,644.80, 290,467.20 and 176,148.80

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Solution

The fourth proportional to 193,644.80, 290,467.20 and 176,148.80 is: 264,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,644.80 : 290,467.20 = 176,148.80 : x
  2. Step 2: Convert to fraction form
    193,644.80/290,467.20 = 176,148.80/x
  3. Step 3: Cross multiply
    193,644.80x = 290,467.20 × 176,148.80
  4. Step 4: Simplify right side
    193,644.80x = 51,165,448,719.36
  5. Step 5: Solve for x
    x = 51,165,448,719.36/193,644.80
  6. Step 6: Final answer
    x = 264,223.20

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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.