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Finding the Fourth Proportional to 271,810.20, 408,152.70 and 183,455.40

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Solution

The fourth proportional to 271,810.20, 408,152.70 and 183,455.40 is: 275,478.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,810.20 : 408,152.70 = 183,455.40 : x
  2. Step 2: Convert to fraction form
    271,810.20/408,152.70 = 183,455.40/x
  3. Step 3: Cross multiply
    271,810.20x = 408,152.70 × 183,455.40
  4. Step 4: Simplify right side
    271,810.20x = 74,877,816,839.58
  5. Step 5: Solve for x
    x = 74,877,816,839.58/271,810.20
  6. Step 6: Final answer
    x = 275,478.32

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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.