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Finding the Fourth Proportional to 325,836.60, 488,900.70 and 148,252.20

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Solution

The fourth proportional to 325,836.60, 488,900.70 and 148,252.20 is: 222,444.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,836.60 : 488,900.70 = 148,252.20 : x
  2. Step 2: Convert to fraction form
    325,836.60/488,900.70 = 148,252.20/x
  3. Step 3: Cross multiply
    325,836.60x = 488,900.70 × 148,252.20
  4. Step 4: Simplify right side
    325,836.60x = 72,480,604,356.54
  5. Step 5: Solve for x
    x = 72,480,604,356.54/325,836.60
  6. Step 6: Final answer
    x = 222,444.64

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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.