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Finding the Fourth Proportional to 516,137.42, 774,205.84 and 161,181.86

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Solution

The fourth proportional to 516,137.42, 774,205.84 and 161,181.86 is: 241,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,137.42 : 774,205.84 = 161,181.86 : x
  2. Step 2: Convert to fraction form
    516,137.42/774,205.84 = 161,181.86/x
  3. Step 3: Cross multiply
    516,137.42x = 774,205.84 × 161,181.86
  4. Step 4: Simplify right side
    516,137.42x = 124,787,937,314.06
  5. Step 5: Solve for x
    x = 124,787,937,314.06/516,137.42
  6. Step 6: Final answer
    x = 241,772.70

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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.