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Finding the Fourth Proportional to 356,489.60, 534,657.60 and 156,809.60

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Solution

The fourth proportional to 356,489.60, 534,657.60 and 156,809.60 is: 235,180.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,489.60 : 534,657.60 = 156,809.60 : x
  2. Step 2: Convert to fraction form
    356,489.60/534,657.60 = 156,809.60/x
  3. Step 3: Cross multiply
    356,489.60x = 534,657.60 × 156,809.60
  4. Step 4: Simplify right side
    356,489.60x = 83,839,444,392.96
  5. Step 5: Solve for x
    x = 83,839,444,392.96/356,489.60
  6. Step 6: Final answer
    x = 235,180.62

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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.