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Finding the Fourth Proportional to 262,234.30, 393,121.05 and 157,095.10

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Solution

The fourth proportional to 262,234.30, 393,121.05 and 157,095.10 is: 235,504.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,234.30 : 393,121.05 = 157,095.10 : x
  2. Step 2: Convert to fraction form
    262,234.30/393,121.05 = 157,095.10/x
  3. Step 3: Cross multiply
    262,234.30x = 393,121.05 × 157,095.10
  4. Step 4: Simplify right side
    262,234.30x = 61,757,390,661.86
  5. Step 5: Solve for x
    x = 61,757,390,661.86/262,234.30
  6. Step 6: Final answer
    x = 235,504.63

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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.