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Finding the Fourth Proportional to 236,828.80, 355,243.20 and 148,355.20

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Solution

The fourth proportional to 236,828.80, 355,243.20 and 148,355.20 is: 222,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,828.80 : 355,243.20 = 148,355.20 : x
  2. Step 2: Convert to fraction form
    236,828.80/355,243.20 = 148,355.20/x
  3. Step 3: Cross multiply
    236,828.80x = 355,243.20 × 148,355.20
  4. Step 4: Simplify right side
    236,828.80x = 52,702,175,984.64
  5. Step 5: Solve for x
    x = 52,702,175,984.64/236,828.80
  6. Step 6: Final answer
    x = 222,532.80

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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.