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Finding the Fourth Proportional to 354,197.09, 531,172.61 and 117,484.41

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Solution

The fourth proportional to 354,197.09, 531,172.61 and 117,484.41 is: 176,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,197.09 : 531,172.61 = 117,484.41 : x
  2. Step 2: Convert to fraction form
    354,197.09/531,172.61 = 117,484.41/x
  3. Step 3: Cross multiply
    354,197.09x = 531,172.61 × 117,484.41
  4. Step 4: Simplify right side
    354,197.09x = 62,404,500,106.59
  5. Step 5: Solve for x
    x = 62,404,500,106.59/354,197.09
  6. Step 6: Final answer
    x = 176,185.81

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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.