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Finding the Fourth Proportional to 228,321.43, 342,562.11 and 70,549.89

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Solution

The fourth proportional to 228,321.43, 342,562.11 and 70,549.89 is: 105,849.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,321.43 : 342,562.11 = 70,549.89 : x
  2. Step 2: Convert to fraction form
    228,321.43/342,562.11 = 70,549.89/x
  3. Step 3: Cross multiply
    228,321.43x = 342,562.11 × 70,549.89
  4. Step 4: Simplify right side
    228,321.43x = 24,167,718,026.34
  5. Step 5: Solve for x
    x = 24,167,718,026.34/228,321.43
  6. Step 6: Final answer
    x = 105,849.54

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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.