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Finding the Fourth Proportional to 243,057.40, 364,586.10 and 223,811.80

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Solution

The fourth proportional to 243,057.40, 364,586.10 and 223,811.80 is: 335,717.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,057.40 : 364,586.10 = 223,811.80 : x
  2. Step 2: Convert to fraction form
    243,057.40/364,586.10 = 223,811.80/x
  3. Step 3: Cross multiply
    243,057.40x = 364,586.10 × 223,811.80
  4. Step 4: Simplify right side
    243,057.40x = 81,598,671,295.98
  5. Step 5: Solve for x
    x = 81,598,671,295.98/243,057.40
  6. Step 6: Final answer
    x = 335,717.70

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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.