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Finding the Fourth Proportional to 417,981.27, 626,995.59 and 133,696.77

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Solution

The fourth proportional to 417,981.27, 626,995.59 and 133,696.77 is: 200,552.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,981.27 : 626,995.59 = 133,696.77 : x
  2. Step 2: Convert to fraction form
    417,981.27/626,995.59 = 133,696.77/x
  3. Step 3: Cross multiply
    417,981.27x = 626,995.59 × 133,696.77
  4. Step 4: Simplify right side
    417,981.27x = 83,827,285,187.24
  5. Step 5: Solve for x
    x = 83,827,285,187.24/417,981.27
  6. Step 6: Final answer
    x = 200,552.73

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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.