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Finding the Fourth Proportional to 148,940.80, 223,411.20 and 134,195.20

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Solution

The fourth proportional to 148,940.80, 223,411.20 and 134,195.20 is: 201,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,940.80 : 223,411.20 = 134,195.20 : x
  2. Step 2: Convert to fraction form
    148,940.80/223,411.20 = 134,195.20/x
  3. Step 3: Cross multiply
    148,940.80x = 223,411.20 × 134,195.20
  4. Step 4: Simplify right side
    148,940.80x = 29,980,710,666.24
  5. Step 5: Solve for x
    x = 29,980,710,666.24/148,940.80
  6. Step 6: Final answer
    x = 201,292.80

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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.