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Finding the Fourth Proportional to 354,322.20, 531,556.20 and 117,834.60

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Solution

The fourth proportional to 354,322.20, 531,556.20 and 117,834.60 is: 176,776.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,322.20 : 531,556.20 = 117,834.60 : x
  2. Step 2: Convert to fraction form
    354,322.20/531,556.20 = 117,834.60/x
  3. Step 3: Cross multiply
    354,322.20x = 531,556.20 × 117,834.60
  4. Step 4: Simplify right side
    354,322.20x = 62,635,712,204.52
  5. Step 5: Solve for x
    x = 62,635,712,204.52/354,322.20
  6. Step 6: Final answer
    x = 176,776.14

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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.