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Finding the Fourth Proportional to 114,578.50, 158,119.41 and 64,278.58

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Solution

The fourth proportional to 114,578.50, 158,119.41 and 64,278.58 is: 88,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,578.50 : 158,119.41 = 64,278.58 : x
  2. Step 2: Convert to fraction form
    114,578.50/158,119.41 = 64,278.58/x
  3. Step 3: Cross multiply
    114,578.50x = 158,119.41 × 64,278.58
  4. Step 4: Simplify right side
    114,578.50x = 10,163,691,145.24
  5. Step 5: Solve for x
    x = 10,163,691,145.24/114,578.50
  6. Step 6: Final answer
    x = 88,705.05

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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.