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Finding the Fourth Proportional to 356,258.60, 534,387.90 and 169,634.60

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Solution

The fourth proportional to 356,258.60, 534,387.90 and 169,634.60 is: 254,451.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,258.60 : 534,387.90 = 169,634.60 : x
  2. Step 2: Convert to fraction form
    356,258.60/534,387.90 = 169,634.60/x
  3. Step 3: Cross multiply
    356,258.60x = 534,387.90 × 169,634.60
  4. Step 4: Simplify right side
    356,258.60x = 90,650,677,661.34
  5. Step 5: Solve for x
    x = 90,650,677,661.34/356,258.60
  6. Step 6: Final answer
    x = 254,451.90

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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.