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Finding the Fourth Proportional to 205,553.60, 308,330.40 and 194,148.80

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Solution

The fourth proportional to 205,553.60, 308,330.40 and 194,148.80 is: 291,223.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,553.60 : 308,330.40 = 194,148.80 : x
  2. Step 2: Convert to fraction form
    205,553.60/308,330.40 = 194,148.80/x
  3. Step 3: Cross multiply
    205,553.60x = 308,330.40 × 194,148.80
  4. Step 4: Simplify right side
    205,553.60x = 59,861,977,163.52
  5. Step 5: Solve for x
    x = 59,861,977,163.52/205,553.60
  6. Step 6: Final answer
    x = 291,223.20

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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.