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Finding the Fourth Proportional to 159,546.47, 220,175.64 and 87,929.11

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Solution

The fourth proportional to 159,546.47, 220,175.64 and 87,929.11 is: 121,343.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,546.47 : 220,175.64 = 87,929.11 : x
  2. Step 2: Convert to fraction form
    159,546.47/220,175.64 = 87,929.11/x
  3. Step 3: Cross multiply
    159,546.47x = 220,175.64 × 87,929.11
  4. Step 4: Simplify right side
    159,546.47x = 19,359,847,518.44
  5. Step 5: Solve for x
    x = 19,359,847,518.44/159,546.47
  6. Step 6: Final answer
    x = 121,343.00

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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.