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Finding the Fourth Proportional to 229,073.87, 342,969.69 and 172,737.66

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Solution

The fourth proportional to 229,073.87, 342,969.69 and 172,737.66 is: 258,623.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,073.87 : 342,969.69 = 172,737.66 : x
  2. Step 2: Convert to fraction form
    229,073.87/342,969.69 = 172,737.66/x
  3. Step 3: Cross multiply
    229,073.87x = 342,969.69 × 172,737.66
  4. Step 4: Simplify right side
    229,073.87x = 59,243,783,635.43
  5. Step 5: Solve for x
    x = 59,243,783,635.43/229,073.87
  6. Step 6: Final answer
    x = 258,623.05

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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.