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Finding the Fourth Proportional to 262,142.50, 393,113.91 and 93,631.30

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Solution

The fourth proportional to 262,142.50, 393,113.91 and 93,631.30 is: 140,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,142.50 : 393,113.91 = 93,631.30 : x
  2. Step 2: Convert to fraction form
    262,142.50/393,113.91 = 93,631.30/x
  3. Step 3: Cross multiply
    262,142.50x = 393,113.91 × 93,631.30
  4. Step 4: Simplify right side
    262,142.50x = 36,807,766,441.38
  5. Step 5: Solve for x
    x = 36,807,766,441.38/262,142.50
  6. Step 6: Final answer
    x = 140,411.29

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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.