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Finding the Fourth Proportional to 432,903.58, 649,355.34 and 117,352.28

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Solution

The fourth proportional to 432,903.58, 649,355.34 and 117,352.28 is: 176,028.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,903.58 : 649,355.34 = 117,352.28 : x
  2. Step 2: Convert to fraction form
    432,903.58/649,355.34 = 117,352.28/x
  3. Step 3: Cross multiply
    432,903.58x = 649,355.34 × 117,352.28
  4. Step 4: Simplify right side
    432,903.58x = 76,203,329,679.18
  5. Step 5: Solve for x
    x = 76,203,329,679.18/432,903.58
  6. Step 6: Final answer
    x = 176,028.41

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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.