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Finding the Fourth Proportional to 117,134.64, 175,701.96 and 28,388.14

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Solution

The fourth proportional to 117,134.64, 175,701.96 and 28,388.14 is: 42,582.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,134.64 : 175,701.96 = 28,388.14 : x
  2. Step 2: Convert to fraction form
    117,134.64/175,701.96 = 28,388.14/x
  3. Step 3: Cross multiply
    117,134.64x = 175,701.96 × 28,388.14
  4. Step 4: Simplify right side
    117,134.64x = 4,987,852,202.55
  5. Step 5: Solve for x
    x = 4,987,852,202.55/117,134.64
  6. Step 6: Final answer
    x = 42,582.21

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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.