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Finding the Fourth Proportional to 204,816.80, 307,225.20 and 152,328.80

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Solution

The fourth proportional to 204,816.80, 307,225.20 and 152,328.80 is: 228,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,816.80 : 307,225.20 = 152,328.80 : x
  2. Step 2: Convert to fraction form
    204,816.80/307,225.20 = 152,328.80/x
  3. Step 3: Cross multiply
    204,816.80x = 307,225.20 × 152,328.80
  4. Step 4: Simplify right side
    204,816.80x = 46,799,246,045.76
  5. Step 5: Solve for x
    x = 46,799,246,045.76/204,816.80
  6. Step 6: Final answer
    x = 228,493.20

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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.