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Finding the Fourth Proportional to 325,493.64, 488,314.98 and 125,815.68

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Solution

The fourth proportional to 325,493.64, 488,314.98 and 125,815.68 is: 188,752.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,493.64 : 488,314.98 = 125,815.68 : x
  2. Step 2: Convert to fraction form
    325,493.64/488,314.98 = 125,815.68/x
  3. Step 3: Cross multiply
    325,493.64x = 488,314.98 × 125,815.68
  4. Step 4: Simplify right side
    325,493.64x = 61,437,681,262.89
  5. Step 5: Solve for x
    x = 61,437,681,262.89/325,493.64
  6. Step 6: Final answer
    x = 188,752.32

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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.