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Finding the Fourth Proportional to 117,645.56, 162,350.34 and 63,929.56

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Solution

The fourth proportional to 117,645.56, 162,350.34 and 63,929.56 is: 88,222.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,645.56 : 162,350.34 = 63,929.56 : x
  2. Step 2: Convert to fraction form
    117,645.56/162,350.34 = 63,929.56/x
  3. Step 3: Cross multiply
    117,645.56x = 162,350.34 × 63,929.56
  4. Step 4: Simplify right side
    117,645.56x = 10,378,985,802.05
  5. Step 5: Solve for x
    x = 10,378,985,802.05/117,645.56
  6. Step 6: Final answer
    x = 88,222.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.