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Finding the Fourth Proportional to 356,635.60, 534,711 and 169,666

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Solution

The fourth proportional to 356,635.60, 534,711 and 169,666 is: 254,383.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,635.60 : 534,711 = 169,666 : x
  2. Step 2: Convert to fraction form
    356,635.60/534,711 = 169,666/x
  3. Step 3: Cross multiply
    356,635.60x = 534,711 × 169,666
  4. Step 4: Simplify right side
    356,635.60x = 90,722,276,526
  5. Step 5: Solve for x
    x = 90,722,276,526/356,635.60
  6. Step 6: Final answer
    x = 254,383.68

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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.