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Finding the Fourth Proportional to 303,493.91, 418,737.74 and 174,425.67

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Solution

The fourth proportional to 303,493.91, 418,737.74 and 174,425.67 is: 240,659.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,493.91 : 418,737.74 = 174,425.67 : x
  2. Step 2: Convert to fraction form
    303,493.91/418,737.74 = 174,425.67/x
  3. Step 3: Cross multiply
    303,493.91x = 418,737.74 × 174,425.67
  4. Step 4: Simplify right side
    303,493.91x = 73,038,609,981.66
  5. Step 5: Solve for x
    x = 73,038,609,981.66/303,493.91
  6. Step 6: Final answer
    x = 240,659.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.