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Finding the Fourth Proportional to 451,642.95, 677,464.70 and 114,708.87

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Solution

The fourth proportional to 451,642.95, 677,464.70 and 114,708.87 is: 172,063.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,642.95 : 677,464.70 = 114,708.87 : x
  2. Step 2: Convert to fraction form
    451,642.95/677,464.70 = 114,708.87/x
  3. Step 3: Cross multiply
    451,642.95x = 677,464.70 × 114,708.87
  4. Step 4: Simplify right side
    451,642.95x = 77,711,209,628.34
  5. Step 5: Solve for x
    x = 77,711,209,628.34/451,642.95
  6. Step 6: Final answer
    x = 172,063.37

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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.