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Finding the Fourth Proportional to 534,338.76, 801,509.74 and 129,529.36

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Solution

The fourth proportional to 534,338.76, 801,509.74 and 129,529.36 is: 194,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,338.76 : 801,509.74 = 129,529.36 : x
  2. Step 2: Convert to fraction form
    534,338.76/801,509.74 = 129,529.36/x
  3. Step 3: Cross multiply
    534,338.76x = 801,509.74 × 129,529.36
  4. Step 4: Simplify right side
    534,338.76x = 103,819,043,655.97
  5. Step 5: Solve for x
    x = 103,819,043,655.97/534,338.76
  6. Step 6: Final answer
    x = 194,294.43

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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.